TROJ_DOWNLOADER_0000a95.TOMA
Generic.dx!tjt (McAfee); Trojan.Gen (Symantec); Trojan.Win32.Agent.edog (Kaspersky); Trojan.Win32.Agent.abzlz (Sunbelt); Trojan.Generic.4116373 (FSecure)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It deletes itself after execution.
TECHNICAL DETAILS
758,272 bytes
EXE
No
17 Apr 2012
Arrival Details
This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Other System Modifications
This Trojan deletes the following files:
- %Program Files%\sxguide\sxguide.exe
- %Program Files%\sxguide\001.dat
- %Program Files%\sxguide\002.dat
- %Program Files%\sxguide\003.dat
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files.)
It deletes the following folders:
- %Program Files%\sxguide
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files.)
It deletes the following registry keys:
hkey_local_machine\software\microsoft\
windows\currentversion\uninstall\
{malware file name}
HKEY_LOCAL_MACHINE\SOFTWARE\sxguide
Dropping Routine
This Trojan drops the following files:
- %System Root%\$$336699.bat
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
Other Details
This Trojan deletes itself after execution.
This report is generated via an automated analysis system.
SOLUTION
9.200
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
Search and delete this file
- %System Root%\336699.bat
Step 3
Scan your computer with your Trend Micro product to delete files detected as TROJ_DOWNLOADER_0000a95.TOMA. 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 4
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.
- %Program Files%\sxguide\sxguide.exe
- %Program Files%\sxguide\001.dat
- %Program Files%\sxguide\002.dat
- %Program Files%\sxguide\003.dat
Step 5
Restore these deleted registry keys/values from backup
*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.
- In hkey_local_machine\software\microsoft\windows\currentversion\uninstall
- {malware file name}
- In HKEY_LOCAL_MACHINE\SOFTWARE
- sxguide
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