TROJ_AGENT.T
TrojanSpy:Win32/Agent.T (Microsoft); PWS-IT (McAfee); Infostealer (Symantec); PAK:FSG, Trojan-Spy.Win32.Agent.brl (Kaspersky); Trojan.Unclassified.gen (Sunbelt); Trojan.Generic.2100080 (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.
TECHNICAL DETAILS
12,207 bytes
EXE
No
21 Aug 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.
Installation
This Trojan drops the following copies of itself into the affected system:
- %System%\msvchost.exe
- %System%\ssvchost.com
Other System Modifications
This Trojan deletes the following files:
- %System%\rgml.dll
(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.)
It adds the following registry keys:
HKEY_LOCAL_MACHINE\Software\LolLol
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\LolLol
httpkb1 = "0"
HKEY_LOCAL_MACHINE\SOFTWARE\LolLol
httpkb2 = "0"
HKEY_LOCAL_MACHINE\SOFTWARE\LolLol
m = "4"
HKEY_LOCAL_MACHINE\SOFTWARE\LolLol
d = "18"
HKEY_LOCAL_MACHINE\SOFTWARE\LolLol
ll = "{random values}"
Dropping Routine
This Trojan drops the following files:
- %System Root%\aaa.cab
- %System%\regc64.dll
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.)
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
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
- LolLol
Step 3
Delete this registry value
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\LolLol
- httpkb1 = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\LolLol
- httpkb2 = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\LolLol
- m = "4"
- In HKEY_LOCAL_MACHINE\SOFTWARE\LolLol
- d = "18"
- In HKEY_LOCAL_MACHINE\SOFTWARE\LolLol
- ll = "{random values}"
Step 4
Search and delete these files
- %System Root%\aaa.cab
- %System%\regc64.dll
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_AGENT.T. 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 6
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.
- %System%\rgml.dll
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