Worm/Autorun.zus - Worm

See also

Full description

Virus:	Worm/Autorun.zus
Date discovered:	11/02/2009
Type:	Worm
In the wild:	Yes
Reported Infections:	Low
Distribution Potential:	Low
Damage Potential:	Low to medium
Static file:	Yes
File size:	24.660 Bytes
MD5 checksum:	6eb4806dbb5dee97e4826c709a25ab1c
IVDF version:	7.01.02.07

General Method of propagation:
   • Autorun feature

Aliases:
   • Mcafee: W32/Autorun.worm.ex
   • Sophos: W32/Autorun-AKF
   • Panda: W32/Autorun.IST.worm
   • Eset: Win32/AutoRun.Agent.JA
   • Bitdefender: Trojan.Agent.AMQO

Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Blocks access to certain websites
   • Blocks access to security websites
   • Downloads malicious files
   • Drops malicious files
   • Registry modification

Files It copies itself to the following location:
   • %drive%\recycle.{%CLSID%}

It copies itself to the following location. This file has random bytes appended so it may differ from the original one:
   • %WINDIR%\ini\ini.exe

It overwrites a file.
– %SYSDIR%\drivers\etc\hosts

The following files are created:

– %WINDIR%\ini\desktop.ini
– %drive%\autorun.inf This is a non malicious text file with the following content:
   • %code that runs malware%

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\Web Folders\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %WINDIR%\Tasks\°²×°.bat Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.zus

– %WINDIR%\ini\shit.vbs Further investigation pointed out that this file is malware, too. Detected as: TR/Script.11167

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\admcgi\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\TextConv\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\VGX\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\bin\1033\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\bots\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\DAO\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\_vti_bin\_vti_adm\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\servsupp\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\admcgi\scripts\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\admisapi\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\Stationery\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\isapi\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\bin\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\bots\vinavbar\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\isapi\_vti_aut\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\_vti_bin\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\Speech\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\isapi\_vti_adm\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\Triedit\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\MSInfo\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\_vti_bin\_vti_aut\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %WINDIR%\ini\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\Speech\1033\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

– %PROGRAM FILES%\Common Files\Microsoft Shared\web server extensions\40\admisapi\scripts\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc

It tries to download some files:

– The location is the following:
   • http://w.wonthe.cn/**********
At the time of writing this file was not online for further investigation.

– The location is the following:
   • http://w.ssddffgg.cn/d6/**********?mac=zdbPkhsylw&ver=1.3
At the time of writing this file was not online for further investigation.

Registry The values of the following registry key are removed:

– [HKLM\SOFTWARE\Microsoft\Windows Script Host\Settings]
   • ActiveDebugging
   • DisplayLogo
   • SilentTerminate
   • UseWINSAFER

The following registry key is added:

– [HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\
   {H8I22RB03-AB-B70-7-11d2-9CBD-0O00FS7AH6-9E2121BHJLK}]
   • "@"="windir"
   • "stubpath"="%WINDIR%\ini\shit.vbs"

Hosts The host file is modified as explained:

– In this case existing entries are deleted.

– Access to the following domains is effectively blocked:
   • 127.0.0.1 www.360.cn; 127.0.0.1 www.360safe.cn; 127.0.0.1
      www.360safe.com; 127.0.0.1 www.chinakv.com; 127.0.0.1
      www.rising.com.cn; 127.0.0.1 rising.com.cn; 127.0.0.1 dl.jiangmin.com;
      127.0.0.1 jiangmin.com; 127.0.0.1 www.jiangmin.com; 203.208.37.99
      www.duba.net; 127.0.0.1 www.eset.com.cn; 127.0.0.1 www.nod32.com;
      203.208.37.99 shadu.duba.net; 203.208.37.99 union.kingsoft.com;
      127.0.0.1 www.kaspersky.com.cn; 127.0.0.1 kaspersky.com.cn; 127.0.0.1
      virustotal.com; 127.0.0.1 www.kaspersky.com; 127.0.0.1 60.210.176.251;
      127.0.0.1 www.cnnod32.cn; 127.0.0.1 www.lanniao.org; 127.0.0.1
      www.nod32club.com; 127.0.0.1 www.dswlab.com; 127.0.0.1 bbs.sucop.com;
      127.0.0.1 www.virustotal.com; 127.0.0.1 tool.ikaka.com; 127.0.0.0
      360.qihoo.com; 127.0.0.1 qihoo.com; 127.0.0.1 www.qihoo.com; 127.0.0.1
      www.qihoo.cn; 127.0.0.1 124.40.51.17; 127.0.0.1 58.17.236.92

File details Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

See a brief description here.

Inserted by Petre Galan on Fri, 26 Feb 2010 18:54 (GMT+1)
Updated by Petre Galan on Mon, 01 Mar 2010 13:22 (GMT+1)

« Back

Worm/Autorun.zus - Worm

Latest News