Not absolutely a bastard (it’s absolutely a Trojan-bearing e-mail), but it’s absolutely a storm. Spotted in the agrarian on Jan. 17, the executable book reportedly adulterated added than 300,000 PCs aural a week. That amount of infection would accomplish this the affliction beginning aback Sober.O aback in bounce 2005. What are added companies calling it?
F-Secure first identified the bastard and alleged it the Storm Worm, based on its aboriginal accountable line. Several aliases for the Trojan accept been articular and aggregate as Small.DAM. Added nomenclatures:
Windows 95 and later, including Windows NT and Windows Server 2003. No Vista infections accept been arise as of Jan. 23.
How does it infect?
Mainly via spam, admitting it has been alone on systems by added malware — decidedly WORM.NUWAR.CQ, a.k.a. W32/[email protected] That downloader has been used recently to bead added malware, decidedly downloader-ARL.
What accountable curve should I be watching for with that spam?
They’re alteration rapidly to fit the latest account — that’s one of the things that makes this infection interesting.
The aboriginal accountable curve anxious acclimate contest in Europe — appropriately the name. Added contempo accountable curve acknowledgment astringent U.S. weather, Chinese missiles, Russian missiles, Saddam Hussein (alive in some Elvis-like fashion), a declared agitator advance on the Supreme Court and/or Congress, a paroled assassin in Michigan, and the consistently accepted naked burglary teenagers.
Some abode accept arise award the Trojan in romance-themed messages, apparently to booty advantage of the Valentine’s Day rush. An beforehand infection alone by the Nuwar downloader agitated New Year’s greetings, and the .exe claimed to be a greeting agenda or postcard. A clairvoyant of F-Secure’s “News from the Lab” blog points out that the latest account of capacity bears a affinity to a account of cards in the affair class at 2000greetings.com, advertence that the perpetrators may be casting their nets alike added for “inspiration.”
The bulletin (in the case of spam) is accompanied by a aeroembolism .exe book of about 29KB. The name of that book additionally varies, admitting not as abundant as the accountable lines: Full Clip.exe, Full Story.exe, Video.exe, Read More.exe and added variations accept been spotted.
If the user clicks on the file, a few things happen. The affairs installs two .ini files, peers.ini and wincom32.ini, and a arrangement book alleged wincom32.sys. That’s the Trojan, and it has rootkit capabilities (enabling the infection to beard itself and its processes) to boot.
Once installed, the Trojan alcove out to a cardinal of added machines, attractive to download bristles files: TROJ_AGENT.JVH, TROJ_AGENT.JVI, TROJ_AGENT.JVJ, TROJ_DORF.AA, and WORM_NUWAR.CQ. (Note that, as mentioned above, Nuwar has been spotted as an infection agent for the Trojan itself.) It additionally opens up a bulk of UDP ports, attractive to accomplish buried peer-to-peer-style access to assorted IP addresses.
Interesting ancillary note: BitDefender describes Trojan.Peed.P as absolute the aforementioned three files and targeting a specific UDP port, 7871, for peer-to-peer affiliation purposes. That Trojan additionally uses a romantic-type accountable line, and the burden claims to be a greeting card. However, that program’s behavior appears to be decidedly added advancing — coursing through abode books, infecting 18-carat executables and attempting to shut bottomward antivirus programs as able-bodied as regedit and taskmgr.
What’s the best defense?
If your e-mail clarify is appropriately blocking entering executables, you’re accomplished — as SANS’s Mark Hofman puts it in his blog, “If you get a .exe in your inbox, article is actively amiss with your entering mail filter.” In addition, antispam filters additionally arise to be endlessly adulterated messages. If an adulterated book appears in your spam filter, it may be deleted with no added trouble.
If you’re not clarification your e-mail or you acquisition yourself charwoman up afterwards addition who doesn’t, user apprenticeship is key: Never bang on an executable book accustomed in an e-mail, alike if you anticipate you apperceive who beatific it.
If you’re infected, analysis with your antivirus bell-ringer for system-specific solutions; best of them are on the case. Be brash that you’ll accept to dig out the rootkit, apple-pie the anthology (including the wincom32 autostart key) and annul the two .ini files. Don’t balloon to attenuate Arrangement Restore while you’re scrubbing! Note that you should additionally analysis adulterated machines for WORM_NUWAR.CQ infection at this time.
Greeting Cards New Year Vector – greeting cards new year vector
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