BKDR_AGENT.ACRP
Backdoor:Win32/Hupigon (Microsoft); BackDoor-AWQ (McAfee); Suspicious.Graybird.1 (Symantec); Backdoor.Win32.Hupigon.dgls (Kaspersky); Backdoor.Win32.Hupigon (v) (Sunbelt); Win32/PEPatch (AVG)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This backdoor 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
505,856 bytes
EXE
No
10 May 2013
Arrival Details
This backdoor 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 backdoor drops the following copies of itself into the affected system:
- %Windows%\EntSver.exe
(Note: %Windows% is the Windows folder, which is usually C:\Windows.)
Dropping Routine
This backdoor drops the following files:
- %Windows%\GUOCYOKl.BAT
(Note: %Windows% is the Windows folder, which is usually C:\Windows.)
Other Details
This backdoor 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
Search and delete this file
- %Windows%\GUOCYOKl.BAT
Step 3
Scan your computer with your Trend Micro product to delete files detected as BKDR_AGENT.ACRP. 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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