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02 Oct   Virus News

Online Scanner Top Twenty for September 2006

PositionChange in positionNamePercentage1. New!Trojan-Downloader.Win32.Delf.awg3.072. +3Backdoor.IRC.Zapchast1.863. ReturnTrojan-Dropper.Win32.Pakes1.704. +7Email-Worm.Win32.Rays0.895. +12Email-Worm.Win32.Brontok.q0.726. +12Virus.Win32.Parite.b0.657. New!Email-Worm.Win32.Warezov.aj0.518. ReturnEmail-Worm.Win32.Scano.aq0.409. +4not-a-virus:RiskTool.Win32.HideWindows0.3910. +4Email-Worm.Win32.Bagle.fj0.3811. New!Trojan-Clicker.Win32.Small.kj0.3712. New!Trojan-Downloader.Win32.Small.ddp0.3613. ReturnVirus.Win32.Hidrag.a0.3614. ReturnTrojan-Downloader.Win32.INService.gen0.3515. New!Trojan-Downloader.Win32.Delf.avj0.3416. New!Email-Worm.Win32.Warezov.at0.3417. -5not-a-virus:Monitor.Win32.Perflogger.1630.3418. ReturnBackdoor.Win32.Rbot.gen0.3319. Returnnot-a-virus:PSWTool.Win32.RAS.a0.3120. -12Backdoor.Win32.mIRC-based0.30Other malicious programs86.03A month has passed since the end of August, when we presented an unusual on-line scanner Top Twenty. Since then, the malware landscape has returned to a more normal state of affairs.The places occupied by worms last month have been taken over by malware which is traditionally present in the online scanner ratings: Trojan-Downloader and Trojan-Dropper programs. This month’s new leader is Trojan-Downloader.Win32.Delf.awg, which appeared on 6th September, when thousands of mail.ru users received a strange email from an unknown girl who offered to share her summer photographs and tales of her holiday. In spite of the fact that none of the recipients knew the Masha/ Liza/ Lena who was the alleged sender, they still opened the message and clicked on the attachment in the hope of seeing something nice. Tried and tested social engineering, which worked as well as it always does, and which helped caused one of the biggest outbreaks of Trojan-Spy LdPinch that we've seen over the past few months. LdPinch was the program which Delf.awg installed on the machines of unsuspecting or

02 Oct   Virus News

Virus Top Twenty for September 2006

PositionChange in positionNamePercentage1. 0Net-Worm.Win32.Mytob.c20.002. 0Email-Worm.Win32.Nyxem.e16.223. +1Email-Worm.Win32.LovGate.w9.714. New!Email-Worm.Win32.Scano.gen5.885. -2Email-Worm.Win32.NetSky.b5.456. +3Net-Worm.Win32.Mytob.t5.087. -2Net-Worm.Win32.Mytob.u3.628. New!Email-Worm.Win32.Scano.aq2.529. +7Email-Worm.Win32.NetSky.t2.4010. -3Net-Worm.Win32.Mytob.w1.6311. -3Email-Worm.Win32.NetSky.y1.5612. -6Net-Worm.Win32.Mytob.q1.4813. -1Trojan-Spy.HTML.Bankfraud.od1.4414. -4Net-Worm.Win32.Mytob.cg1.3315. New!Trojan-Spy.HTML.Bayfraud.io1.2516. ReturnNet-Worm.Win32.Mytob.ar1.2117. -6Net-Worm.Win32.Mytob.a1.1518. -1Net-Worm.Win32.Mytob.h1.1319. -6Email-Worm.Win32.NetSky.x1.0920. New!Net-Worm.Win32.Mytob.dam0.95Other malicious programs14.90The battle for the top position between Mytob.c and Nyxem.e continues for the third month in a row. After losing considerable ground in August, Nyxem improved its position in September by almost two percentage points, while Mytob.c dropped by six percentage points. As a result, the current difference between the two malicious programs at the top of the rating is only about 4%.Still, the outcome of this confrontation is predetermined: Mytob.c has been at the top for so long that the only thing capable of unseating it would be a global email worm outbreak comparable to that caused by Mydoom.a in January 2004. However, given the way antivirus protection has been evolving, and with the emergence of new types of cyber crime, the chances of a global epidemic are minimal.As before, the Top Twenty is largely made up of worms which have appeared in recent years, i.e. by variants of the old Mytob, NetSky and LovGate worms. In 2006 several malicious programs including Feebs, Scano, Bagle and Warezov seemed to aspire to participating in the virus

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