Posts Categorized: malware


Phisher Puts Antiphishing Tool in the Crosshairs

by

A small-time Trojan has decided to butt heads with a big-time anti-phishing tool, and ended up with dirt on its face. The malware looks like a fairly generic clone of Trojan-Phisher-SABanks, with an extra feature that sounds like it might be a good selling point for cheap cybercrooks intent on stealing a few bank passwords for fun and profit. The trojan attempts to disable or delete parts of Trusteer’s Rapport anti-phishing software. And fails, miserably. One version of the Trojan drops, then executes, a batch file that attempts to delete the main application. Another drops a batch which targets a […]

Continue Reading »

Facebook Spam Leads to Viagra Vendor, Drive-by Download

by

Annoying as they are, the spam emails circulating that supposedly come from Facebook don’t merely lead the recipient to one of those so-called Canadian Pharmacy pill-vendor websites. They now come with a bonus: An infection, courtesy of a malicious iframe which attempts a series of exploits against the browser, Adobe Reader, and Adobe Flash in an attempt to push a drive-by download down to the victim’s PC. The messages, which say they come from a service called Facebook Notify (or, sometimes, just Facebook Service) inform the recipient that they’ve received a message. In order to read the message, the recipient […]

Continue Reading »

Game Phishing Trojan Uses DirectX to Launch Itself

by

PC gamers have a new threat to contend with, one that has your personal information in its crosshairs and you can’t dispatch with a sniper rifle or BFG9000: A Trojan designed to steal game passwords that uses Microsoft’s own graphics engine, DirectX, against you. The Trojan, which appears to have originated in China, modifies one or more of the DirectX driver files — such as DirectSound, Direct3D, or DirectDraw — so it only loads when Windows fires up the modified DirectX driver. Because DirectX is typically used by games, it means this sleeper cell Trojan activates when you fire up […]

Continue Reading »

Fake Amazon.com Order Emails Bring a Trojany “Friend”

by

An ongoing campaign where malware distributors use email spam to deliver dangerous programs to unwitting victims has begun to change its tune, switching the scam to incorporate different brands. In the latest scam, the message appears to be an order confirmation from Amazon.com for the purchase of an expensive consumer electronics item, or a contract (spelled, tellingly, “conract“) for expensive home improvement work, purportedly to be done on the recipient’s home. A few weeks ago, the emails switched from a “shipping confirmation” hook to one which claims the contents of the attachment include a code worth $50 on Apple’s iTunes […]

Continue Reading »

Trojan Masquerades as iTunes Gift or Résumé

by

If you received one or more email messages over the past week that claim to contain an attached gift certificate for the Apple iTunes store or an unsolicited résumé, you probably received the latest scam involving the Tacticlol downloader. The iTunes-themed spam messages use the forged return address of gifts.certificate@itunes.com and read, in part, You have received an iTunes Gift Certificate in the amount of $50.00. You can find your certificate code in the attachment below. The resume messages simply say Please review my CV, Thank you! — using the abbreviation for Curriculum Vitae, the British analogue to the word […]

Continue Reading »

Defencelab Rogue Steals Microsoft’s Name (Again)

by

When you see an online order form that bears Microsoft’s logo and the words “pay to: Microsoft Inc.,” are you any more likely to enter a credit card number into the form and click submit? That’s the psychological experiment currently being undertaken by a company that calls itself DefenceLab, which subjects unsuspecting users to its peculiar blend of fakealert with rogue antivirus. Last year, our friends at Sunbelt wrote two very interesting blog items about DefenceLab. At the time, DefenceLab was accused of lifting content from the products and Web sites of legitimate comapnies such as Microsoft and AVG, inserting […]

Continue Reading »

Cloud Defs Limit the Damage of a False Positive

by

If you’re a customer or an employee of McAfee, chances are, you’re having a rough week. The company published a false positive, or FP, in its antivirus definitions that went out to customers a few days ago. The FP resulted in some computers going into a loop where the antivirus engine misidentified a key component of the Windows operating system as malicious, Windows replaced the quarantined file, and then the McAfee engine removed it again. I really feel badly both for McAfee’s customers as well as their researchers. The customers certainly didn’t deserve or want their protection to go haywire. […]

Continue Reading »

Modified Websites Pushing Trojans On the Rise

by

For the past couple of weeks, owners of Web sites have been hit with a wave of attacks that surreptitiously infect unsuspecting visitors with a wide variety of malware types. The first wave inflicted rogue antivirus on unlucky victims, but late last week victims who visited infectious sites were redirected into a drive-by download site that pushes clickers onto a vulnerable visitor’s computer. The affected web sites have been modified to add malicious, obfuscated Javascript code to the footer of each page. Some Web hosts are trying to notify customers or fix the problems. At first, the problem affected sites […]

Continue Reading »

This PC Will Self-Destruct in Ten Seconds

by

Phishing Trojans that try to remain below the radar are still prevalent, but a number of files coming through Threat Research point to a disturbing trend: Several new variants of existing malware families are taking a scorched earth approach to infected computers, rendering the PC unbootable (just check out the batch file at left for just one egregious example) once the malware has retrieved whatever data it’s trying to steal, or deliberately crashing it, repeatedly, if you try to remove it. Since the middle of last year, we’ve seen a sprinkling of malware that also wipes out key files on […]

Continue Reading »