WORM_OTORUN.SMMO
Worm:Win32/Hilgild!gen.A (Microsoft); W32/Autorun.worm.zzk (McAfee); W32.SillyFDC (Symantec); Worm.Win32.AutoRun.cxnf (Kaspersky); Worm.Win32.Hilgild.ba (v) (Sunbelt); Gen:Trojan.Heur.RP.kiW@aqQzkqai (FSecure)
Windows 2000, Windows XP, Windows Server 2003

Threat Type: Worm
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
174,080 bytes
EXE
No
04 Nov 2011
Arrival Details
This worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This worm drops the following copies of itself into the affected system:
- %User Profile%\Application Data\wmimgmt.exe
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
It creates the following folders:
- %User Profile%\DRM\Media
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
Other System Modifications
This worm deletes the following files:
- %User Temp%\temp.vih
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
Dropping Routine
This worm drops the following files:
- %User Temp%\avp.exe
- %User Temp%\RHFLQB.XML
- %User Temp%\INFO.TXT
(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
This report is generated via an automated analysis system.
SOLUTION
9.200
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Search and delete this folder
Step 3
Search and delete these components
- %User Temp%\avp.exe
- %User Temp%\RHFLQB.XML
- %User Temp%\INFO.TXT
Step 4
Scan your computer with your Trend Micro product to delete files detected as WORM_OTORUN.SMMO. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
Step 5
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again. %User Temp%\temp.vih
Did this description help? Tell us how we did.