VBS/Autorun.VF - VBS script virus

See also

Summary

Full description

Statistics

Virus:	VBS/Autorun.VF
Date discovered:	18/04/2008
Type:	Worm
In the wild:	Yes
Reported Infections:	Low to medium
Distribution Potential:	Low to medium
Damage Potential:	Low to medium
Static file:	No
File size:	~18.000 Bytes
IVDF version:	7.00.03.188 - Fri, 18 Apr 2008 17:05 (GMT+1)

General Method of propagation:
   • Mapped network drives

Aliases:
   • Mcafee: W32/Autorun.worm.cg
   • Kaspersky: Worm.VBS.Autorun.r
   • TrendMicro: VBS_AGENT.AMAF
   • F-Secure: Worm.VBS.Autorun.r
   • Sophos: VBS/Autorun-EC
   • Bitdefender: Worm.VBS.Autorun.D

Platforms / OS:
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Access to floppy disk
   • Drops files
   • Registry modification

Files It copies itself to the following locations:
   • %SYSDIR%\.vbe
   • %SYSDIR%\wbem\.vbe
   • %drive%:\.vbe

The following files are created:

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

Registry The following registry key is added in order to run the process after reboot:

– [HKLM\software\microsoft\windows\currentversion\policies\explorer\
   run]
   • %computer name% = .vbe

The following registry key is added:

– [HKLM\software\%computer name%]
   • %system-dependent%

The following registry key is changed:

Various Explorer settings:
– [HKCU\software\microsoft\windows\currentversion\explorer\advanced]
   New value:
   • showsuperhidden = 0

See a brief description here.

Description inserted by Andrei Gherman on Tue, 17 Jun 2008 10:35 (GMT+1)
Description updated by Andrei Gherman on Tue, 17 Jun 2008 10:36 (GMT+1)

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