TROJ_DLAGENT2.SM
Trojan:Win32/Agent.BQ (Microsoft); BackDoor-BDD (McAfee); Adware.Iefeats (Symantec); PAK:UPX, Trojan-Downloader.Win32.Agent.bq (Kaspersky); Trojan.Win32.Agent.bi (v) (Sunbelt); Trojan.Generic.1806155 (FSecure)
Windows 2000, Windows XP, Windows Server 2003
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.
TECHNICAL DETAILS
11,020 bytes
EXE
No
04 May 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 adds the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{C34F8513-3486-DF81-C961-AA6CC4069F1D}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{C34F8513-3486-DF81-C961-AA6CC4069F1D}\LocalServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{C34F8513-3486-DF81-C961-AA6CC4069F1D}\Data
It deletes the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PROTOCOLS\Filter\text/html
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
PROTOCOLS\Filter\text/plain
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
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID
- {C34F8513-3486-DF81-C961-AA6CC4069F1D}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C34F8513-3486-DF81-C961-AA6CC4069F1D}
- LocalServer32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{C34F8513-3486-DF81-C961-AA6CC4069F1D}
- Data
Step 3
Scan your computer with your Trend Micro product to delete files detected as TROJ_DLAGENT2.SM. 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 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\Classes\PROTOCOLS\Filter
- text/html
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\PROTOCOLS\Filter
- text/plain
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