TSPY_AGENT.AKHM
PWS:Win32/Mapdimp.gen (Microsoft); PWS-OnlineGames.ce (McAfee); Infostealer.Gampass (Symantec); Trojan-GameThief.Win32.OnLineGames.semv (Kaspersky); Trojan.Win32.Packer.Upack0.3.9 (ep) (Sunbelt); Trojan horse PSW.Agent.TXH (AVG)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Spyware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This spyware 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
15,941 bytes
EXE
No
14 Jul 2013
Arrival Details
This spyware 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 spyware adds the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{00010001-0001-0001-0001-00010001BB15}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{00010001-0001-0001-0001-00010001BB15}\InProcServer32
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{00010001-0001-0001-0001-00010001BB15}\InProcServer32
ThreadingModel = "Apartment"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\ShellServiceObjectDelayLoad
adsntzt.dll = "{00010001-0001-0001-0001-00010001BB15}"
Dropping Routine
This spyware drops the following files:
- %System%\adsntzt.tmp
(Note: %System% is the Windows system folder, which is usually C:\Windows\System32.)
Other Details
This spyware deletes itself after execution.
This report is generated via an automated analysis system.
SOLUTION
9.300
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
- {00010001-0001-0001-0001-00010001BB15}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{00010001-0001-0001-0001-00010001BB15}
- InProcServer32
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\Classes\CLSID\{00010001-0001-0001-0001-00010001BB15}\InProcServer32
- ThreadingModel = "Apartment"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad
- adsntzt.dll = "{00010001-0001-0001-0001-00010001BB15}"
Step 4
Search and delete this file
- %System%\adsntzt.tmp
Step 5
Scan your computer with your Trend Micro product to delete files detected as TSPY_AGENT.AKHM. 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.
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