Security

Articles about Security on omid.dev — guides, topics, and notes from the field.

WinXP users: hold off on installing MS010–15 [BSOD]

Published: February 12, 2010 Reading time: 3 min

Security blogger Brian Krebs is reporting that some Windows XP users are reporting blue screen of death on reboot after installing Microsoft’s Tuesday patch KB977165 (MS010–15: “Vulnerabilities in Windows kernel could allow elevation of privilege.”) “Turns out, a non-trivial number of XP users are reporting that their systems suffer from the dreaded Blue Screen of Death (BSoD) and fall into an interminable reboot loop after installing the latest batch of patches from Redmond,” ...

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New Rogue: SecurePcAv

Published: February 12, 2010 Reading time: 1 min

SecurePcAv is a phony antivirus program that has been infecting PC’s across the interwebs in recent days. If your PC is infected with SecurePcAv you will most likely experience the following: Fake system scans that report numerous infections and refuses to remove the supposed infections until you buy the phony software. Alerts and warnings stating the PC is under attack or unprotected and recommends you buy the phony software. Other software will not work, when attempting to open programs a warning stating the program is infected appears and the software is closed. Web browser hijacking, redirecting the user to malicious websites or showing false security warnings on sites like Google.com.

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Zeus – Exploiting Spear Phishing to Spear Phish

Published: February 12, 2010 Reading time: 1 min

The Zeus crimeware family has moved into new territory with its latest spam campaign – purporting to be a warning about targeted phishing attacks on “.gov” and “.mil” domains, by Zeus Trojans no less! In fact, one of the latest spam samples we’ve seen, duplicates the title and first three paragraphs of a blog entry by well-known security expert Brian Krebs, which discusses a previous iteration of this Zeus attack. As seen below, the spam sample starts off with the same three lines of the blog post, before starting into the phony KB content and links that lead to Zeus malware. ...

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New Rogue: Paladin Antivirus

Published: February 12, 2010 Reading time: 1 min

Paladin Antivirus is a phony security program, designed to rip people off. Paladin Antivirus tricks people into thinking they are downloading a legit antivirus software, then continually displays false security alerts and warnings followed up with a requests for users to buy or register the software. Once a computer becomes infected with Paladin Antivirus it will instantly begin a system scan and will report multiple infections. Paladin Antivirus will refuse to remove any of these supposed infections until the user buys or “registers” the software. Do not fall for this scam. ...

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The Buzz is getting LOUDER

Published: February 12, 2010 Reading time: 2 min

It has been barely two days since Google announced their new social integration and messaging tool called Google Buzz. Today we saw the first example of malware, W32/Zuggie-A, pretending to be Google Buzz. Analysis of W32/Zuggie-A gives the impression of a hastily assembled worm, really a modification of the W32/SillyFDC family of worms but with a twist. When W32/Zuggie-A is installed, it creates the following files: Program Files\Mozilla Firefox\extensions{9CE11043-9A15-4207-A565-0C94C42D590D}\chrome\content\timer.xul Program Files\Mozilla Firefox\extensions{9CE11043-9A15-4207-A565-0C94C42D590D}\chrome.manifest Program Files\Mozilla Firefox\extensions{9CE11043-9A15-4207-A565-0C94C42D590D}\install.rdf System\googlebuzz.exe – copy of W32/Zuggie-A System\GoogleUpte.exe – copy of W32/Zuggie-A W32/Zuggie-A modifies the registry to autostart GoogleUpte.exe and googlebuzz.exe. A quick search shows that the CLSID: 9CE11043-9A15-4207-A565-0C94C42D590D has previously been seen in multiple worms. This supports my theory that this is a hastily assembled worm built from recycled malware. I fired up a copy of Firefox on the infected machine and, as determined from analysis, found an installed Firefox extension called Firefox security 2.0 – Internal security options editor under the extensions tab of Firefox Add-ons. This “security extension” has added a JavaScript (timer.xul), which is triggered when the browser queries: yahoo.com, bing.com, google.com, aol.com/aol/search, ask.com and executes JavaScript hosted on: searchrequest1 . com / request . php ? aid = blackout which will silently click all Google or Yahoo Ads. displayed on the search results page (hey why not make a few bucks while infecting eh?). Google Buzz is new and is garnering quite a bit of interest and adoption among Internet users including myself. Clearly the malware authors view Google Buzz as the fresh big lucrative social fruit to exploit much like they have done with Facebook, MySpace, Hi5 and others. So in the coming weeks and months I predict we will see a host of new malware exploiting or attempting to exploit Google Buzz as the malware authors figure out its internals. This may have only been an exploratory attempt or a quick response to the latest craze – only time will tell.

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Between a PoC and a Hard Place

Published: February 12, 2010 Reading time: 3 min

Several reports have been published detailing a Blackberry proof of concept (PoC) exploit called txsBBSpy that was recently presented at a security conference. Although it may not have been the aim of the original presenter, some reports have framed the PoC as being able to exploit so-called vulnerabilities that the writers believe to be present in the Blackberry platform. The “vulnerabilities” involve secretly forwarding incoming emails, locating devices by way of their GPS capabilities, eavesdropping on conversations by surreptitiously turning on microphones, and other such nefarious behavior. ...

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Interview with a Nigerian 419 scammer

Published: February 12, 2010 Reading time: 3 min

Bruce Schneier, in his blog Schneier on Security http://www.schneier.com/ drew attention to this great interview with an ex-Nigerian-419 scammer on the Scam-Detective site. It’s a fairly long piece and gives a pretty good view of the Nigerian scam industry run by organized crime, how it sucks in young people who have good computer and English skills and pays them a huge amount of money ($75,000 per year in this case) to scam victims they view as white, greedy and rich. ...

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Fake AV & Talking With The Enemy

Published: February 12, 2010 Reading time: 2 min

Fake antivirus software (a.k.a misleading applications or rogue antivirus) is big business nowadays with Symantec reporting 43 million installation attempts from over 250 distinct programs between July 1, 2008, to June 30, 2009. With fake AV software costing the victim anywhere from $30 to $100, this is a lucrative earner for criminals. Over time Symantec has observed various social engineering tactics being used to try and entice victims to hand over their money in this scam. The fake antivirus software known as Live PC Care has now gone as far as offering live online support to potential victims. Once a victim has installed Live PC Care onto their system via a system exploit or social engineering tactics, they are presented with the screen below falsely informing them that their system is riddled with viruses. Any suspicious computer user might wonder what this software is and where exactly it came from. To alleviate doubt and to aid with the whole scam, the designers of Live PC Care have added a yellow online support button in the top, right-hand corner of the fake AV software. ...

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New Rogue: Advanced Defender

Published: February 12, 2010 Reading time: 1 min

Advanced Defender is fake security software that tricks people into thinking it’s legitimate antispyware software in hopes they will pay for the product. Advanced Defender is a potentially dangerous and extremely frustrating PC infection that should be removed immediately. If Advanced Defender has infected your computer you may notice the following symptoms: System scans that report numerous infections, yet requires purchase of Advanced Defender before it will remove the infections (These are fictitious scan results) Alerts and Pop-Up system warnings stating the PC is infected and recommend purchase of Advanced Defender (These warnings are fake) Web browser redirecting to random websites (these websites are owned by cyber thieves and will further infect your PC) Advanced Defender will prevent other programs from opening, stating they are infected (The programs are not infected)

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A Perfect Valentine’s Day

Published: February 12, 2010 Reading time: 3 min

Planning a romantic Valentine’s Day for your loved one? Is there is no end to all that you can do to add even more sparkle this dreamy day? Perhaps a bottle of wine, flowers, or a lovely gift to impress him/her—and if you aren’t with anyone, there are even dating services available that provide you with options to meet a date. As Dermot Harnett mentioned in A Brilliant Proposal: Stay Away from Valentine’s Day Spam!, for spammers, Valentine’s Day is a great target. We’ve observed several spam email message styles related to this upcoming event. Gift options, flower delivery, dating service, med spam to spice up your relationship, and much more. Here are some common header lines that Symantec has tracked relating to Valentine’s Day: ...

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Take Care Before Valentine: Cupid Struck

Published: February 11, 2010 Reading time: 1 min

It’s just a few more days before Valentine’s Day. As most people now are already preparing their celebration, malware authors are also getting ready to use this popular event to target users with their malicious intent. Here’s one example of a malicious file (2077ed17f0ad92dafb8fb7601570e06580e4b7f1) we’ve seen recently: Upon execution, it drops the following picture file greeting: Note: It seems that the malware writers are using valid images from legitimate Web sites. ...

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Rogue trying to look like Avira anti-virus

Published: February 11, 2010 Reading time: 1 min

Jerome Segura at ParetoLogic blogged about this yesterday: a rogue security product with a web page that tries to imitate that of the German AV company Avira (check out the red umbrella and the type face.) Hmmm. If this company has been providing “20 Years of Total Protection” how come its web site was just registered last year and why was it registered by a proxy service? The fake: ...

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Security chip that does encryption in PCs hacked

Published: February 11, 2010 Reading time: 5 min

SAN FRANCISCO – Deep inside millions of computers is a digital Fort Knox, a special chip with the locks to highly guarded secrets, including classified government reports and confidential business plans. Now a former U.S. Army computer-security specialist has devised a way to break those locks. The attack can force heavily secured computers to spill documents that likely were presumed to be safe. This discovery shows one way that spies and other richly financed attackers can acquire military and trade secrets, and comes as worries about state-sponsored computer espionage intensify, underscored by recent hacking attacks on Google Inc. ...

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New Rogue: SafePcAV

Published: February 8, 2010 Reading time: 1 min

The creators behind the rogue antispyware appliaction WiniGuard have released yet another clone of their software. This one is called SafePcAV. SafePcAV spreads by showing fake online scanners. Once installed it will show hundreds of false infections. To remove these infections it requires the user to pay and license the software. If your computer is infected with this you must remove it soon, Click Here to learn how to remove it.

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Phishing Using Pornographic Content as Bait

Published: February 8, 2010 Reading time: 2 min

Symantec has observed a new trend in phishing in which the phishing Web page contains pornographic content. The phishing site states that the end user can obtain free pornography after logging in or signing up. These offers tempt users into entering their credentials in the hopes of obtaining pornography. The attackers use several offers of pornography as bait. Some of the offers are adult chat, social networking with adult personals for sexual favors, blogs with free pornography, and so on. The screenshot below is an example of a phishing website using a leading information services brand. The site states that they provide email alerts for sex parties: ...

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