Posts Tagged: TRxGM


Shorty Worm Spams Links, Hijacks Browsers

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A novel worm we’re calling Worm-IM-Shorty appears to be winding its way through Facebook and some instant messaging services, with its come-on disguised as a link to a photograph hosted elsewhere. But when recipients click the link, they receive an executable Trojan instead, dressed up with the name and icon of a JPEG image. If one double-clicks the file, the Trojan turns the computer into an advertising cash cow for some enterprising malware distributor. The Trojan modifies the active browser’s home page setting to a malicious page on domredi.com, which in turn redirects the browser, at random, to one of […]

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New Bank Phisher Brings Added Functionality, Problems

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I didn’t want to let too much time pass before I wrote about a new Zbot-like bank phishing Trojan variant that came across my desk last week. The keylogger started arriving the first week of February as an attachment to a spam email designed to look like it came from United Parcel Service. No, the old malware trope of spammed shipping invoices is not dead yet, Alice, but we’re going to follow this one down the rabbit hole anyhow. The brief message had a Subject line of “United Parcel Service notification” followed by a random, five-digit number, and a file […]

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Search Hijacker Adds Files to Firefox Profile

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In September, I posted an item about a dropper which we call Trojan-Dropper-Headshot. This malware delivers everything including the kitchen sink when it infects your system. It has an absolute ton of payloads, any of which on their own constitute a serious problem. All together, they’re a nightmare. Among the payloads, we’ve seen this monstrosity drop downloaders (Trojan-Agent-TDSS and Trojan-Downloader-Ncahp, aka Bubnix), adware (Virtumonde, Street-Ads, and Sky-banners), keyloggers (Zbot and LDpinch), clickfraud Trojans (Trojan-Clicker-Vesloruki and at least three other generic clickers), and a Rogue AV called Antivir Solution Pro. So this is one nasty beast that has no qualms about using […]

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Civilization 5 Torrent Bonus: Uncivilized Malware

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Bootlegged copies of Civilization 5, the highly anticipated, just-released real time strategy game, are already popping up in file sharing services. And, as we’ve come to expect, some of the pirated copies of the game come with that little something special — malicious components. One of our Threat Research Analysts, who also happens to be an avid gamer, started looking for pirated copies of the game Friday morning and, within five minutes of looking, found Trojans in some of the torrents in circulation. I’ve chosen to focus on one of these files, not only because it was the first we […]

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Blackhat SEO of Google Images Links to Rogue AV

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Yesterday, a few of the Threat Research folks and I had a little fun playing with a hack that had, for one day at least, pretty much decimated Google’s Image Search feature. One researcher, who stumbled into the attack purely by chance, found that a Google Images link to a map of the United States was, instead, redirecting hapless Web surfers to pages that deliver an installer of a rogue antivirus in the Security Tool family of fine, fraudulent products. What really caught our interest was how the hack behaved, depending on the operating system and browser you used. With […]

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Starcraft 2 Launch Day Piracy Infects Eager Gamers

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While some members of our Threat Research group are attending talks at the Black Hat Briefings, the rest of the team is back at our offices, hard at work watching for novel threats.  That’s good news for gamers, and bad news for malware distributors who might try to take advantage of a confluence of events where many elite members of the security community are temporarily turned away from monitors while they attend the conference. I received a warning about one potential threat facing gamers who might turn to piracy to get a copy of Blizzard’s new real-time-strategy game, Starcraft II. […]

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Spammed Trojan Won’t Run Under Windows XP

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While it is far from the first Trojan ever to simply fail to execute under Windows XP, it definitely caught our eye that a variant of Trojan-Downloader-Tacticlol distributed last week in a spam campaign only fully executed under Windows Vista or newer operating systems. It may have been just a fluke, but repeated tests with both a virtual machine and real hardware running Windows XP at various patch levels showed that the Trojan we received attached to a spam message simply quit when executed in an XP environment, but ran smoothly and did all its planned dirty work on a […]

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