TROJ_GRAFTOR.AT
Backdoor:Win32/Thoper.E(Microsoft), Win32/Korplug.J trojan(Eset)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan may be dropped by other malware.
TECHNICAL DETAILS
225,280 bytes
DLL
Yes
16 Jul 2013
Arrival Details
This Trojan may be dropped by other malware.
Other System Modifications
This Trojan adds the following registry keys:
HKEY_CLASSES_ROOT\SS
HKEY_CLASSES_ROOT\SS\PROXY
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
SS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
SS\PROXY
Other Details
This Trojan connects to the following possibly malicious URL:
- http://{BLOCKED}se.{BLOCKED}manage.com/update?id={random}
SOLUTION
9.300
10.158.02
16 Jul 2013
10.159.00
17 Jul 2013
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
Restart in Safe Mode
Step 3
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_CLASSES_ROOT
- SS
- SS
Step 4
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_GRAFTOR.AT. 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.
NOTES:
Once the key, HKEY_CLASSES_ROOT\SS, has been removed, the registry key in HKEY_LOCAL_MACHINE will also be removed automatically.
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