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VIRUS \ SPYWARE ALERTS - April 21, 2009

by Marianna Schmudlach / April 21, 2009 12:51 AM PDT
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Troj/Mdrop-CBI
by Marianna Schmudlach / April 21, 2009 12:52 AM PDT
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Troj/JSRedir-O
by Marianna Schmudlach / April 21, 2009 12:52 AM PDT
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Troj/Inject-GQ
by Marianna Schmudlach / April 21, 2009 12:53 AM PDT
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Troj/Hupignon-A
by Marianna Schmudlach / April 21, 2009 12:54 AM PDT
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Troj/FakeAV-PG
by Marianna Schmudlach / April 21, 2009 12:55 AM PDT
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Troj/Bckdr-QTP
by Marianna Schmudlach / April 21, 2009 12:56 AM PDT
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Troj/Banker-ERG
by Marianna Schmudlach / April 21, 2009 12:56 AM PDT
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Troj/Agent-JPM
by Marianna Schmudlach / April 21, 2009 12:57 AM PDT
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Mal/PDFJs-G
by Marianna Schmudlach / April 21, 2009 12:58 AM PDT
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Mal/ObfJS-AG.
by Marianna Schmudlach / April 21, 2009 1:34 AM PDT

Sinowal delivery: date-driven redirection scripts

Recently, there have been a few reports of new Sinowal (aka Mebroot or StealthMBR) variants having been spotted in the wild [1,2]. We have been seeing this activity ourselves at SophosLabs. In this post I will highlight some interesting characteristics of the scripts that are being used for infecting victims with Sinowal in web attacks.

Of course, there is nothing novel or particularly exciting in malware authors injecting malicious code into legitimate sites in order to infect victims through drive-by attacks. However, what makes Sinowal?s approach slightly more interesting is the use of a date-driven domain generation algorithm within the injected, malicious script. (Ok, so not as ?exciting? as that used by Conficker, but nonetheless, an interesting highlight amongst the plethora of other rather dross, static redirects used elsewhere in web attacks.)

The malicious scripts currently being used by Sinowal for redirection are being detected as Mal/ObfJS-AG. The malicious content is heavily obfuscated and unreadable, but sufficiently large to make it fairly easy for site admins to spot the rogue content within affected pages.

More: http://www.sophos.com/blogs/sophoslabs/

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Adware-OptServe
by Marianna Schmudlach / April 21, 2009 1:44 AM PDT
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W32/Vanbot-H
by Marianna Schmudlach / April 21, 2009 2:02 AM PDT
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Troj/SWF-D
by Marianna Schmudlach / April 21, 2009 2:03 AM PDT
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dream came true
by shesaidshehad1 / April 21, 2009 2:19 AM PDT
In reply to: Troj/SWF-D

Cyberdefender is my dream come true by way of ridding virus'.

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Troj/SkimTrim-C
by Marianna Schmudlach / April 21, 2009 2:03 AM PDT
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Troj/Mbroot-A
by Marianna Schmudlach / April 21, 2009 2:04 AM PDT

Aliases

* Trojan.Mebroot
* rojan.Win32.Agent.dsj
* TROJ_AGENT.APA

Category

* Viruses and Spyware

Type

* Trojan


Troj/Mbroot-A includes functionality to access the internet and communicate with a remote server via HTTP.

When Troj/Mbroot-A is installed it creates the file <Temp>\cln2.tmp. The file cln2.tmp is detected as Mal/Sinowa-A.

Sophos's anti-virus products include Behavioral Genotype" Protection,which can proactively guard against new threats without requiring an update. Sophos customers have been protected against Troj/Mbroot-A (detected as Mal/Sinowa-A) since version 4.25.

http://www.sophos.com/security/analyses/viruses-and-spyware/trojmbroota.html?_log_from=rss

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Troj/FakeAV-PH
by Marianna Schmudlach / April 21, 2009 2:05 AM PDT
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W32/Tvido-B
by Marianna Schmudlach / April 21, 2009 6:33 AM PDT
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Troj/TDSS-AA
by Marianna Schmudlach / April 21, 2009 6:34 AM PDT
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Troj/Mbroot-E
by Marianna Schmudlach / April 21, 2009 6:35 AM PDT
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Troj/JSRedir-P
by Marianna Schmudlach / April 21, 2009 6:35 AM PDT
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Troj/FakeAle-MX
by Marianna Schmudlach / April 21, 2009 6:36 AM PDT
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Troj/Dwnldr-HPZ
by Marianna Schmudlach / April 21, 2009 6:37 AM PDT
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Troj/DwndLdr-A
by Marianna Schmudlach / April 21, 2009 6:38 AM PDT
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W32/Koobfa-Gen
by Marianna Schmudlach / April 21, 2009 9:50 AM PDT

Aliases

* Net-Worm.Win32.Koobface
* W32/Koobface.worm virus
* Worm:Win32/Koobface.A

Category

* Viruses and Spyware

Type

* Worm


W32/Koobfa-Gen is a family of worms for the Windows platform that target social networking sites including Facebook, MySpace, hi5, Bebo, Friendster, myYearbook, Tagged, Netlog and fubar.

The worms attempt to send messages to users of the social networking site pointing to a copy of themselves.

When first run, members of W32/Koobfa-Gen often display an error message saying:

Error installing Codec. Please contact support.

Members of W32/Koobfa-Gen often create a clean .dat data file called in the Windows folder, for example <Windows>\fmark2.dat.

Members of W32/Koobfa-Gen may create registry entries similar to the folowing:

HKLM\SYSTEM\ControlSet001\Control\Session manager\PendingFileRenameOperations
<blank>
\??\<path to worm>\??\<path to another executable>

HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\PendingFileRenameOperations
<blank>
\??\<path to worm>\??\<path to another executable>

http://www.sophos.com/security/analyses/viruses-and-spyware/w32koobfagen.html?_log_from=rss

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Troj/SWFLdr-A
by Marianna Schmudlach / April 21, 2009 9:51 AM PDT
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Troj/Dloadr-CLN
by Marianna Schmudlach / April 21, 2009 11:00 AM PDT
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Troj/Bckdr-QTQ
by Marianna Schmudlach / April 21, 2009 11:01 AM PDT
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Troj/Agent-JPO
by Marianna Schmudlach / April 21, 2009 11:02 AM PDT
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