Virus: Worm/Autorun.zvm 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: 2b52021892bbcf14e2f672787eab388f IVDF version: 7.01.02.09 - Wednesday, February 11, 2009
General Method of propagation: • Autorun feature Aliases: • Mcafee: W32/Autorun.worm.ex • Panda: W32/Autorun.IST.worm • Eset: Win32/AutoRun.Agent.JA • Bitdefender: Trojan.Agent.AMQN 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% }\ini.exe 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\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 Folders\wsock32.dll Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.nvc – %WINDIR% \Tasks\ Further investigation pointed out that this file is malware, too. Detected as: Worm/Autorun.zvm – %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\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\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 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\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\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/d5/**********?mac=YHhYzoFSpF&ver=1.3 At the time of writing this file was not online for further investigation. Registry – [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"=hex:25,77,69,6E,64,69,72,25,5C,69,6E,69,5C,73,68,69,74,2E,76,62,73,00 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.
Description inserted by Petre Galan on Thursday, February 25, 2010 Description updated by Petre Galan on Friday, February 26, 2010
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