Saturday, March 20, 2010
Friday, August 07, 2009
Office comms risks and controls
This obviously raises questions about how to reduce the risks without unduly interfering with legitimate business communications. Technical controls offer limited assistance e.g. blocking IM will block legitimate IM activities, and determined users can sometimes find ways around such blocks anyway. Automatically appended email disclaimers have dubious legal validity, particularly those that are written or modified by amateurs. Policies and procedures can help but only if employees are made aware of, accept and comply with them, which requires awareness activities (such as this month's NoticeBored module) and compliance activities (such as management oversight - basically taking an interest in what staff are doing at their desks).
Risk avoidance is arguably the most effective control, in other words discouraging or preventing unnecessary office communications outside the organization. However this is likely to have an adverse impact on legitimate business activities, and hence costs.
Since the controls are evidently not perfect, wise organizations make contingency arrangements in preparation for situations when the controls fail and incidents occur. Examples:
- Incident notification and specific response procedures covering these kinds of incident;
- Response procedures include 'damage limitation' using legal actions (e.g. those disclaimers and Non Disclosure Agreeand Public Relations (e.g. stock press releases ready to issue);
- "Learning the lessons" which means using incidents (particularly those suffered by the organization but also its peers and others in the public domain) as case studies and training materials;
- Disciplinary procedures taking account of incidents of this nature, typically using examples.
[Scary postscript: the Pentagon thinks there is value in 'instant comms', if only soldiers can be persuaded not to disclose little things such as battle plans ...] [Or is this just a crude attempt by the US to encourage foreign militia to permit their soldier to use Twitter ?]
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Thursday, March 19, 2009
Worming the Internet
Microsoft has offered $250k for information leading to the arrest and prosecution of those behind Conficker/Downadup, a sign that Internet security issues are bad for all Internet users, not least the big businesses that depend on it.
Meanwhile, a third variant of the worm has been detected with a trigger date of April 1st. This could be big.
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Friday, February 20, 2009
Military systems not immune to civil (or for that matter military) malware
While the journalists and military PR people are typically at pains to point out that such events affect only unclassified or lowly-classified networks, the impacts sometimes appear to indicate otherwise - unless that is the French navy is in the habit of passing military orders over unclassified networks, which I doubt.
The reality of modern life is that most organizations are connected to the global Internet, and therefore they rely on network security controls to prevent "unauthorized traffic", including malware and hackers. Even those with no Internet connections remain vulnerable to malware infections by other routes, such as USB memory sticks in the French navy case. If even the highly controlled and well funded military are vulnerable to such nasties, what hope is there for other organizations, particularly large or diverse organizations with limited control over their IT systems and networks? I'm very conscious that our own small business remains vulnerable, despite the firewalls, antivirus software, network monitoring and so on, but at least we have security awareness on our side!
Labels: Malware
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Tuesday, February 03, 2009
Alleged Fannie Mae logic bomber denies charges
"A 35-year-old computer programer pleaded not guilty on Friday to charges that he planted a computer virus designed to destroy all the data on 4,000 Fannie Mae computer servers the day he was fired from the company ..."
While we read about logic bombs in security textbooks, real world examples are relatively few and far between, in other words the probability of attack is quite low. The impacts could be significant, although in practice most attacks we read about have been thwarted while a proportion of successful attacks are likely either to be misdiagnosed as bugs, viruses, outsider attacks etc. or covered up by embarrassed managers. As so often when assessing information security risks, the true scale of the insider threat can only be surmised from imperfect data and hence contingency planning is sensible in case we miscalculate.
Disgruntled technically-competent insiders, usually IT professionals, get the blame for logic bombings. Logic bombs are but one example of the damage privileged insiders can cause, ranging from fraud and theft of intellectual property (personal or proprietary) to passive resistance such as faked incompetence and "accidental" damage to the IT systems and networks under their control. Last year's story of network administrator Terry Childs holding the city of San Francisco to ransom for the access password is another real-world example.
What controls would be useful to guard against this sort of situation? There's a wide choice including:
- Management oversight - bosses keeping an eye on what their staff are doing (not so easy to arrange if the boss is the trouble maker and other bosses are incompetent to oversee or are simply unaware!);
- Divisions of responsibility such that a lone cowboy cannot easily take advantage of his access (tricky again if he has system privileges and access to information, systems and processes that permit him to bypass or undermine standard access controls);
- Laws, regulations, policies, standards, procedures and guidelines, not just to influence potential logic bombers (who, by their very nature, are unlikely to respect the rules) but also to establish and mandate the supporting/compensating procedural, technical and physical security controls;
- Audits, whether periodic/planned/pre-notified or ad hoc/unannounced/surprise visits, plus management reviews and similar checkpoints, particularly when scoped and panned specifically to address this issue and performed by experts with prior experience in this area;
- Technology-related controls such as air-tight change and configuration management processes; scans for unauthorized or inappropriate source code, malware and hacker tools on production systems; logical access controls as a whole; trustworthy backups; network intrusion detection and content management systems etc.;
- Slick incident management processes to identify and respond rapidly and efficiently to potential incidents and thus limit the damage;
- Liabilities on those responsible, whether employees or third parties, that are legally defined and practically enforceable in employment or service contracts (an after-the-fact contingency or corrective control);
- Whistleblowers' hotline - a facility to encourage peers and co-workers (including managers and HR people dealing with clearly disgruntled staff) to report their concerns or suspicions in confidence for independent review;
- Security awareness, training and educational activities, for instance promoting the whistleblower's hotline and policies, and training those who oversee IT operations in the symptoms of insider attack to watch out for (e.g. when logic bombers develop and test their evil schemes prior to the Big One);
- Pre- and para-employment screening of employees in an attempt to locate and drop the bad apples, assuming that they can be identified as such (some believe that bad apples can be psychologically profiled but this practice is probably more art than science - merely being a social misfit or square-peg-in-a-round-hole is not in itself sufficient cause to track or sack somone, and such people can be extremely beneficial and creative if somewhat difficult to manage employees);
- Sensible termination procedures, designed to remove possible hitches from a leaver's last few days or weeks on site (e.g. arranging for an "understudy" to shadow a leaver, both to pick up important new skills and to watch out for inappropriate activities);
- Keeping employees gruntled, not disgruntled (!). Seriously, maintaining good employer-employee relations is a general baseline control against many forms of insider threat, and a particular challenge for management in an economic downturn. Procedural controls are particularly likely to suffer when people have other things on their mind than the organinization's best interests.
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Botnets to watch in 2009
The estimated sizes of the botnets range up to about 175,000 compromised machines, with most being a few tens of thousands, well short of the millions that lurid mainstream news headlines sometimes claim. Still tens of thousands of broadband connected computers can do a lot of damage.
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Thursday, January 29, 2009
Malwareness

Hi there!
Malware authors are constantly exploring different modes of infection, creating new payloads and inventing novel criminal activities. Some malware modifies its own code in order to try to escape detection by pattern-matching antivirus software, or picks up new component parts through the Internet as the infection progresses (Malware As A Service!). Read more about the malware scourge in this month’s awareness module and newsletter.
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Friday, October 10, 2008
Malicious 'M$ update' attachment
Dear Microsoft Customer,Doh!
Please notice that Microsoft company has recently issued a Security Update for OS Microsoft Windows. The update applies to the following OS versions: Microsoft Windows 98, Microsoft Windows 2000, Microsoft Windows Millenium, Microsoft Windows XP, Microsoft Windows Vista.
Please notice, that present update applies to high-priority updates category. In order to help protect your computer against security threats and performance problems, we strongly recommend you to install this update.
Since public distribution of this Update through the official website http://www.microsoft.com would have result in efficient creation of a malicious software, we made a decision to issue an experimental private version of an update for all Microsoft Windows OS users.
As your computer is set to receive notifications when new updates are available, you have received this notice.
In order to start the update, please follow the step-by-step instruction:
1. Run the file, that you have received along with this message.
2. Carefully follow all the instructions you see on the screen.
If nothing changes after you have run the file, probably in the settings of your OS you have an indication to run all the updates at a background routine. In that case, at this point the upgrade of your OS will be finished.
We apologize for any inconvenience this back order may be causing you.
Thank you,
Steve Lipner
Director of Security Assurance
Microsoft Corp.
I wonder how many non-infosec professionals would fall for it though.
Labels: Malware, Social engineering
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Thursday, October 02, 2008
Dual use IT
The Web is awash with organizations offering to license their RATs and keylogging Trojans but, so far as I can see, they are mostly aiming at the "Spy on your spouse" market. Some of them claim to be aiming at "Spy on your employees" or "Spy on your children", as if that legimitises their activities but speaking personally, I find these uses unethical too. Spouses, employees and children ALL have legitimate expectations of privacy, whether online or off. To me, spying on them as they use the computers is essentially the same as spying on them in the Real World. It's underhand and unfair. Putting yourself in their shoes, how would you like to be spied upon?
[Aside: presumably there is a market for counter-espionage techniques, software that identifies RATs etc. and responds in some appropriate fashion, perhaps feeding the spies false information or simply cutting the link, the IT equivalent of firing a poison pellet into the spy's calf!].
That said, an incident close to home has made me reconsider my ethical position when a close family member discovered that her child was being 'groomed' through online chatrooms. The discovery came not through spy software but good ol' fashioned parenting - keeping a close eye on the little ones and protecting their interests. In this case, the parents' concern was justified and the groomer was stopped in his tracks, but I'm not saying that "the end justifies the means". If my relative had used spy software, I would still have found it distasteful. I think. But that's my personal perspective: you may see things differently.
Anyway, the use of spy software to recover a stolen computer seems perfectly reasonable and indeed entirely legitimate to me. The thief has no reasonable expectation of privacy while using stolen equipment. Maybe I wouldn't go so far as to say the thief has no rights at all (he is still a human being after all) but privacy is not one of them. The Globe mentions similar cases where owners have turned on built-in cameras to photograph those who are using their stolen systems - again, that's not unreasonable to me, just a creative use of technology.
Of course, thieves will see things differently.
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Friday, April 04, 2008
BT uses spyware to audit broadband use
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Tuesday, April 01, 2008
Malware blamed for supermarket data breach
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Saturday, March 22, 2008
10,000 infected pages
This kind of attack is yet another good reason to ensure your antivirus software is always up to date (assuming I don't need to tell you to install and run AV software!), and to load security patches promptly for all of the software programs on your system. PSI from Secunia is a useful tool to track the release of patches - it keeps an eye on what's installed and what versions are current, alerting you when your system falls behind.
Labels: Malware
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Thursday, March 20, 2008
Signature based AV is dead. Long live sig AV!
The demise of signature-based AV detection has been predicted many times before but it stubbornly remains a relatively effective and inexpensive control, on the whole. I'm worried about bespoke malware, custom-written to infiltrate specific target organizations, but there other techniques come into play, DLP and checksumming being two of them. So called "heuristic scanning" has a bad press for generating too many false positives, but that's another piece of the defense-in-depth puzzle, along with prompt patching and (of course) security awareness. There's no need to detect avoided malware.
Labels: Malware
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Tuesday, March 18, 2008
Addressing the growing botnet threat
If you don't have audio facilities on your system, or simply prefer to read, a transcript is also available.
A little collection of information security-related podcasts from CERT. They are aimed at busy executives with largely nontechnical content.
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Sunday, March 16, 2008
Spyware impacts productivity
single spyware infection on a work computer can impact the productivity of the typical small business employee for two-and-a-half days, according to research commissioned by the Computing Technology Industry Association (CompTIA).
A survey of employees at businesses with 10 to 200 computer users found that more than one in four computer users reported having their productivity impacted by a spyware infection during the past six months. Of these, more than one-third reported multiple spyware inflections.
Definitions of spyware vary but the take-home message from this CompTIA study is simply that spyware is a widespread problem that impacts productivity.
Labels: Malware
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Friday, March 14, 2008
Drive-by malware alert
This kind of attack is yet another good reason to ensure your antivirus software is always up to date (assuming I don't need to tell you to install and run AV software!), and to load security patches promptly for all of the software programs on your system. PSI from Secunia (or NSI for corporates) are useful tools to track the release of patches - it keeps an eye on what's installed and what versions are current, alerting you when new patches are released. PSI, the personal home-use version, is free and recommended.
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Friday, February 29, 2008
Targeted malware
Labels: Malware
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Monday, February 25, 2008
Malware awareness module released

We have updated and reissued the NoticeBored security awareness module on malware, one of our 'core modules' covering a topic that features heavily in all security awareness programs.
As part of the research to update the module, I've been reading lately about 'virtual malware' or, more accurately, rootkits that target not just the operating system kernel but the underlying hypervisor software used on virtualization systems. To those without a technical background, this may seem like angels dancing on a pinhead but to us nerdy geeky types, virtualization is cool and virtual malware is uber cool.
By coincidence, an article on The Register discusses a vulnerability in VMware, one of the virtualization systems. This could be Big News for anyone using VMware in a production environment, such as many ISPs for example. Various technical security bloggers are deep in discussion.
Labels: Malware
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Thursday, January 10, 2008
Having a bad day at the office?
This story touches on quite a number of security topics:
- He was a trusted insider who went bad
- Logic bombs are a form of malware
- His office/day-job gave him privileged access to the company's IT assets
- Weak change management process controls did not prevent the bomb being installed
- The logic bomb had one or more bugs in the program/script
- Nevertheless it sparked a security incident
- He was called to account for the damage
- There was legal and presumably corporate policy noncompliance
- The risk of recurrence presumably remains
All in all, a nice multi-purpose security awareness case study.
PS The official US DOJ press release about the conviction is dated "Dec 8 2008", an integrity failure to boot.
Labels: Accountability, Awareness, Bugs, Change, Compliance, Incidents, Insider, Malware, Office, Risk
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Saturday, December 22, 2007
A Christmas present for ordinary computer users
The only significant omission that occurs to me is online software security patching. Peter blogged just a week ago about a free and urgent security patch for Skype, perhaps not a good example as he chastises Skype for not publicising the patch. Microsoft Update is probably better.
Personally, I use Secunia's PSI (Personal Software Inspector) to track and stay current with security patches for most of the software on my home system, not just the Microsoft stuff. It does a good job for me but may be too geeky for ordinary mortals. What do you think? Is there a more user friendly option you'd recommend?
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Wednesday, December 12, 2007
Why HTML email is BAD
Click here for a full size screenshotThe screenshot above is an email spotted today in my spam box. It's a conventional phishing email with a classic call-to-action and a link whose URL takes victims to the phishing site rather than CitiBusiness.What caught my eye, though, was the hex encoded gibberish at the bottom. I can't be bothered to convert it all to readable characters and probably don't have the skills necessary analyze it and figure out exactly what it's doing but the few unencoded words (api, update, end, exe, create, engine, close, define, revision, tmp, hex, URAW, rev., create, root:, LHY, serv, 22MP., source:, Y1TM, cvs, revision, 60T, 376T:) do rather give the game away: it looks like some sort of attempt to get victims' email software to execute code. My bet is that it exploits a bug in the way HTML emails are handled. Needless to say, my machine is configured to read emails as plaintext. I can live without the fancy text formatting, and malware, thank you very much.
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Wednesday, August 29, 2007
Beware free l(a)unches

The emails vary slightly in the names of the "beta software" (e.g. Investment Developer, Cooking Helper, Home Reno Planner etc.) and of course the senders and subject lines vary.
They all seem to point to an executable file at a numeric IP address, which is most likely another Trojan dropper.
This looks to me like another generation of the STORM worm.
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Wednesday, August 22, 2007
Malware spam spewed forth

We've received loads of similar malware spams today, all basically the same structure with minor differences and spelling mistakes (see above).
The links vary but we understand that one (at least) attempts to infect visitors' PCs with a downloader Trojan. Good up to date antivirus software should trap it but do not rely on this as your sole control: it is not recognized by all antivirus programs.
A quick search of my spam/deleted box for emails containing the string "account number" reveals a whole bunch of em received so far today.
Senders include
Bartenders Guide
Cat Lovers
Cool Pics
Dog Lovers
Downloader Heaven
Entertaining Pros
Free Web Tools
Fun World
Funny Files
Game Connect
Internet Dating
Job Search Pros
Joke-A-Day
Mobile Fun
MP3 World
Net Gambler
Net-Jokes
Office Antics
Online Gamers
Online Hook-Up
Poker World
Pet World
Resume Hunters
Ringtone World
Web Connects
Web Cooking
Wine Lovers
Subject lines include
Dated confirmation
Internal Support
Internal Verification
Internet Techincal Support [sic]
Login info
Login information
Login Verification
Member Confirm
Member Details
Membership Details
Membership support
New member confirmation
New User Details
New User Letter
New User Support
Registration confirmation
Registration Details
Tech Department
Thank you for joining
User Info
User services
User Verification
Welcome new member
There are other variants in circulation too.
The spams are believed to be the result of a new mutant of the Storm worm that has been very active for weeks. SANS Internet Storm Centre has some technical info on it and there's more on F-Secure's blog.
The usual advice "Don't click on dubious links" applies here. Now might be a good time for your security awareness person to inform your fellow employees in calm, helpful tones about the threat. PLEASE do not add to the problem by circulating wild warning emails with "Please tell everyone you know!" or similar - leave the job to the professionals and the news media. Oh and don't forget to check that your antivirus software is updating itself regularly.
*UPDATE* Download a security awareness 'alert' about this, suitable for circulating to your fellow employees. NoticeBored customers: please contact us for the editable MS Word version.
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Thursday, July 19, 2007
Lurid job ads
"Hackers stole information from the U.S. Department of Transportation and several U.S. companies by seducing employees with fake job-listings on advertisements and e-mail, a computer security firm said."
The Reuters correspondent explains that victims were lured to a site with [fake] job advertisements and (presumably) phishing emails, only to have their systems infected with malware. The malware apparently evaded detection by the standard antivirus tools. Nasty.
I've long said that narrowly-targeted/custom malware is a particular threat if it slips under the antivirus silver bullet. Imagine the power of being able to select your target organization and inject your data extraction device and suck out your fill of an organization's lifeblood, with little chance of detection or prosecution. Imagine now that you are a Foreign Power or Criminal Mastermind with the money to buy such malware or the resources to recruit and train your own black squadron of evil hackers ...
Sleep well. Don't have nightmares. Leave that to us professional paranoiacs.
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Friday, June 15, 2007
What the white hats are up against
1. The Black Hats form a well integrated community that shares knowledge effectively
2. Becoming a Black Hat is a career option even for those who are not super geeks.
3. There are even specialist virus tools designed to circumvent specific AV products.
4. There are SDKs for the more advanced hackers.
5. There's a market for your data.
6. There are botnets to rent.
7. Some rogue websites are very subtly managed.
8. Good hackers know how to stay safe (they stay abroad)
9. The banking system has its channels
10. Not all businessmen are entirely averse to the odd hack (on a competitor)
In the sense of "know your enemy", the article presents an interesting perspective.
Labels: Fraud, Hacking, ID theft, Incidents, Malware, Network, Risk
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Tuesday, April 03, 2007
Microsoft animated cursor fix
More network security resources
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Saturday, March 31, 2007
SME Achilles heel = Well connected salesmen
More security awareness and malware links
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Friday, March 23, 2007
Forensic analysis of a Russian Trojan
The description, like the Trojan, is complex and technical but makes fascinating reading for IT professionals. The analysts used virtual machines, Safe Mode, a debugger and tools from SysInternals and Wireshark/Ethereal to dissect the beast. Luckily the antivirus companies' tech gurus have the patience and skills to do this kind of analysis on our behalf.
More malware links
Labels: Malware
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Monday, March 19, 2007
The State of Malware
Over the course of the past two years, information technology has seen
some amazing advances. Unfortunately, malware authors are keeping pace
with the industry. This webcast will reveal what's really going on "out
there" - from sophisticated phishing "worms" to a disturbing increase
in Trojans, extensive bot networks and new polymorphic viruses. Methods
of distribution are changing, too. For example, new Web technologies
are making it easier than ever to disseminate malware. So what can we
do? The webcast will also cover methods of detection and prevention,
including behavioral analysis and site reputation.
You need a free SANS portal account and either Real Audio Player or Windows Media Player to access this SANS webcast and the archive of past webcasts.
More malware links
Labels: Malware
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Thursday, March 15, 2007
CERT cybertip on antivirus software
More malware links
Labels: Malware
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Tuesday, March 13, 2007
Malware trends on mobile devices
Kaspersky's summary of current mobile malware risks identifies trends during 2006 that point to the possibility of this getting serious before too long. The number of mobile viruses increased steadily from ~120 to ~180 in the year, still way short of the epidemic virus numbers seen on PC platforms. Of more interest is a perceived change in the nature of the threat, namely more emphasis on stealing money rather than simply annoying users. If true, that observation mirrors what others are saying about identity theft and other criminal activities in general in relation to information security incidents.
[That said, I feel pretty safe out here in the depths of rural New Zealand, several miles outside mobile coverage. We use jungle drums not cellphones.]
More malware links
Labels: Malware
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Thursday, March 08, 2007
Polymorphism gone bonkers
Once upon a time long long ago, cunning virus authors discovered they cold fool the early antivirus programs simply by making insignificant changes in their code. Adding the odd "null command", pointless loops or whatever was enough to make 'variants' that escaped detection, for a while anyway until the equally cunning antivirus analysts caught on, figuring out how to unravel the variations and find the common factors to make reliable virus signatures. Virus variants emerged every few months or weeks.
Next, even more cunning authors of automated virus generating engines added the ability to create variant or "polymorphic" viruses at will. A whole industry of polymoprphic cunningness developed, adding tricks such as self-modifying code, obfuscation and encryption to the pot and spewing out variants by the bucket-load. The antivirus wizz-kids spent their days searching through the layers of obfuscation for invariant code sequences such as the decryption routines, and toyed with the idea of "heuristic scanning" for "virus-like activity". Variants emerged every few weeks or days.
The author of "Storm" took the game to a new level. He/she released a few hundred worm variants simply to test the waters, then an absolute avalance of thousands or tens of thousands of variants all at once, seeded from tens or hundreds of thousands of compromised 'bot' machines all over the net. The worms use highly variable subject lines and code and through sheer numbers alone threaten to overload even the most assiduous antivirus team.
The next chapter in this thriling story is likely to be rather unpleasant.
More malware links
Labels: Malware
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Antivirus product comparison
The top three products in the latest assessment are AVK, TrustPort and AVIRA.
To be fair, most of the top products score very similarly.
More malware links
Labels: Malware
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Tuesday, March 06, 2007
Malware videos
Drive-by downloads demonstrates how simply browsing a malicious or compromised website may infect an inadequately-secured PC. Using Firefox with the NoScript add-in makes this kind of attack less likely compared to a standard Internet Exploder configuration.
Rootkits are explained in three parts (part 1 part 2 part 3). Avoidance tips in part 3 hint at the issues well-concealed rootkits can create even for security geeks.
More malware links
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Saturday, March 03, 2007
Bot wars
Despite claims of novelty by CNN, these worms have been around for years.
More malware links
Labels: Malware
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Thursday, March 01, 2007
Sun Telnet daemon worm in the wild
More network security links to follow next month
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Monday, February 26, 2007
Malware security awareness module released

If you know someone who thinks antivirus software makes them immune to malware, perhaps our latest awareness module will help you change their mind. There is more to malware than viruses, and antivirus software only partially addresses one class of malware threats.
Since we last put out this core module a year ago, spyware, rootkits and Trojan have become increasingly prominent and problematic while viruses and worms are fading gradually into the background cosmic noise of the Internet (... of course, that could be 'famous last words'! There is still no shortage of widespread security vulnerabilities and zero day exploits to worry about).
We're counting on you. Good luck Jim.
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Saturday, December 23, 2006
When SysAdmins go bad 2 - the terror returns
More malware links
Labels: Accountability, Incidents, Insider, Malware, Risk
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Wednesday, December 20, 2006
Insider threats info from CERT
To back-up the podcast, there is a wealth of information on the insider threat on CERT's website. This is evidently a focus area for CERT and (on a professional note) it is gratifying to find that employee security awareness is recognized as an important control - specifically, Dawn mentioned use of 'whistleblower hotlines', policies and so forth to encourage/facilitate employees shopping their peers. Snitching may create its own ethical dilemmas but, speaking as one who has occasionally benefited from information provided in confidence by 'snouts' aggrieved at the liberties taken by their colleagues, it is a sadly underappreciated form of control.
Account management and review processes and change/configuration change management practices are also emphasized. The podcast highlights the amount of trust placed in privileged IT insiders.
More security awareness links
Labels: Awareness, Governance, Hacking, Insider, Malware
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Tuesday, December 19, 2006
When SysAdmins go bad
More links on hacking, malware, accountability, roles & responsibilities, incident management and laws, standards & regulations
Labels: Accountability, Hacking, Incidents, Insider, Law, Malware
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Friday, December 15, 2006
Spear phishing case study
More malware, email and social engineering links
Labels: Email, Malware, Social engineering
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Sunday, December 10, 2006
You've got infected mail!
More social engineering, incident management, bugs!, secure software development and malware links
Labels: Development, Email, Incidents, Malware, Social engineering
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Friday, October 06, 2006
Laptop security is a top priority
More portable IT security and wireless networking links
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Thursday, September 28, 2006
Being born yesterday
Mail server report.
Our firewall determined the e-mails containing worm copies are being sent from your computer.
Nowadays it happens from many computers, because this is a new virus type (Network Worms).
Using the new bug in the Windows, these viruses infect the computer unnoticeably.
After the penetrating into the computer the virus harvests all the e-mail addresses and sends the copies of itself to these e-mail
addresses
Please install updates for worm elimination and your computer restoring.
Best regards,
Customers support service
Needless to say, I didn't open the attachment (which had already been quarantined by the antivirus software, in any case). Phew, that was a close one!
More Bugs! and malware links
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Wednesday, September 06, 2006
NIST guide to email security
- Since exchanging email with the outside world is a requirement for most organizations, email is allowed through their network perimeter defenses. Because of this, attackers are increasingly using email as a vector for their attacks. At a basic level, viruses and other types of malware may be distributed throughout an organization via email. Increasingly, however, attackers are getting more sophisticated and are using email to deliver targeted zero-day attacks to users in an attempt to compromise their workstations. If successful, the attackers will then have an attack platform within the organization’s internal network.
- Given email’s nature of human to human communication, it can be used as a social engineering vehicle. Email can allow an attacker to exploit an organization’s users to gather information or get the users to perform actions that further an attack.
- Flaws in the mail server application may be used as the means of compromising the underlying server and hence the attached network. Examples of this unauthorized access include gaining access to files or folders that were not meant to be publicly accessible, and being able to execute commands and/or install software on the mail server.
- Denial of service (DoS) attacks may be directed to the mail server or its support network infrastructure, denying or hindering valid users from using the mail server.
- Sensitive information on the mail server may be read by unauthorized individuals or changed in an unauthorized manner.
- Sensitive information transmitted unencrypted between mail server and client may be intercepted. All popular email communication standards default to sending usernames, passwords, and email messages unencrypted.
- Information within email messages may be altered at some point between the sender and recipient.
- Malicious entities may gain unauthorized access to resources elsewhere in the organization’s network via a successful attack on the mail server. For example, once the mail server is compromised, an attacker could retrieve users’ passwords, which may grant the attacker access to other hosts on the organization’s network.
- Malicious entities may attack external organizations from a successful attack on a mail server host.
- Misconfiguration may allow malicious entities to use the organization’s mail server to send email-based advertisements (i.e., spam).
- Users may send inappropriate, proprietary, or other sensitive information via email. This could expose the organization to legal action.
Comments on the draft are welcome before October 6th.
More email security resources
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Laptop hacking step-by-step
More on mobile security
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Sunday, June 18, 2006
Zero-day exploits follow M$ patches
Perhaps not such a coincidence: Symantec is reporting that a PowerPoint zero-day exploit was released just after July's M$ patch Tuesday.
More malware links
Labels: Malware
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Saturday, June 10, 2006
On finding a lost USB drive
More social engineering and malware links
Labels: Awareness, Malware, Social engineering
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Monday, June 05, 2006
British nurse hackmailed
A blog entry from September 2005 notes variants on the theme, using Distributed Denial of Service for example to extort money from victims. Whereas DDOS attacks have generally targeted online businesses such as gambling companies and, of course, Blue Security, it's possible the nurse story is an example of increasing criminal interest in targeting individual people. Cybercriminals have traditional hacking, malware, social engineering and spam in their toolboxes and identity theft is another lucrative con against individuals. The Internet provides many opportunities for criminals to hide their own identities and launder funds. It's the World's Wild West.
More malware links
Labels: Malware
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Friday, June 02, 2006
Email security awareness

June's NoticeBored security awareness module covers email security, one of our "core topics" that practically all security awareness programs are bound to cover. We look beyond the obvious issues such as spam, malware and phishing to aspects such as libel, harrassment and unauthorized contracts.
Email security links
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Saturday, May 20, 2006
MS Word zero day exploit in the wild
More malware resources
Labels: Malware
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Saturday, May 06, 2006
Spycar anti-spyware tester
More (anti-)malware links
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Wednesday, April 12, 2006
Microsoft exec warns: Beware rootkits
More links on keeping secrets and malware
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Tuesday, March 21, 2006
Trojan author and wife convicted
More malware links
Labels: Malware
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Monday, March 06, 2006
Keeping Up with the Phishers
More malware and authentication resources
Labels: Authentication, Email, ID theft, Malware
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Friday, February 03, 2006
F-Secure phished
More malware, social engineering and authentication links
Labels: Authentication, Email, ID theft, Malware, Social engineering
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Thursday, January 26, 2006
Hidden threats - rootkits and botnets
More "virus" links
Labels: Malware
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Tuesday, January 24, 2006
Spear phishing for MPs
More malware links here
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Monday, August 15, 2005
F-Secure Computer Virus Information Pages: Zotob.A
More change management and malware resources
Labels: Malware
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Wednesday, August 10, 2005
The value of currency
More change management resources
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Thursday, July 21, 2005
"Underground" websites
More anti-hacking and malware resources
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Monday, July 11, 2005
'London bombing' Trojan
More malware, anti-hacking and crisis management links
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Saturday, July 09, 2005
Targeted Trojan emails
More anti-hacking and malware resources
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Tuesday, June 28, 2005
Targeted attacks pose new security challenge
More email and malware resources
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Friday, June 17, 2005
UK agency warns about emails bearing gifts
More email security and malware links.
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Tuesday, June 07, 2005
Bin Laden email Trojan
More malware links and email security links
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Monday, May 30, 2005
Trojan used for industrial espionage
More malware and privacy links
Labels: Confidentiality, Malware, Privacy, Secrecy, Trade secrets
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Thursday, May 19, 2005
Malware threats converge
More malware links and risk management links.
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Thursday, March 31, 2005
Risks of file-sharing
This is the latest of around 30 Cyber Security Tips released by CERT, each one addressing a single everyday aspect of information security. Mindi McDowell, the main author, has a beautifully clear, largely non-technical writing style and provides straightforward advice for ordinary computer users.
More malware links here
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Tuesday, March 29, 2005
Prevent malware and data leakage via USB sticks
More malware and confidentiality resources
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Monday, March 28, 2005
$100k malware incident
More malware links here
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Monday, March 21, 2005
DTI security advice
More malware links here
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Saturday, March 19, 2005
eRobbery foiled
More on malware here
Labels: Malware
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Thursday, March 17, 2005
CERT cyber security tip: recovering from malware
Other CERT cyber security tips listed here
Other malware links here
Labels: Malware
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Tuesday, March 15, 2005
Antivirus software response times
More malware links here
Labels: Malware
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Saturday, March 12, 2005
Worm library
More malware links here
Labels: Malware
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Friday, March 11, 2005
Internet Storm Center report on worms and phish
More malware links here
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Viruses explained - Sophos booklet
More malware links here
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Wednesday, March 09, 2005
Anti-phishing Act of 2005
More malware links here and more IT fraud links here
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Monday, March 07, 2005
Spyware advice and awareness video from Microsoft
More malware links here
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Friday, March 04, 2005
Bill Cheswick presentation
More malware links here
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Analysis of the functions in Phatbot Trojan
More malware links here
Labels: Malware
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Flaw in Trend Micro AntiVirus Library
More malware links here
Labels: Malware
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Three more Bagles on the loose
More malware links here.
Labels: Malware
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Tuesday, March 01, 2005
Malware awareness module released
Updated malware links here
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Monday, February 28, 2005
Security at Home: Viruses & Worms
More malware links here
Labels: Malware
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Sunday, February 27, 2005
Great website for vulnerabilities and threats
Click here for more malware links

