BKDR_HUPIGON.QRJ
Backdoor:Win32/Hupigon.DF (Microsoft); BackDoor-AWQ.b.gen (McAfee); W32.Versie.A (Symantec); Backdoor.Win32.Hupigon.ahur (Kaspersky); BehavesLike.Win32.Malware.eah (mx-v) (Sunbelt); Backdoor.Hupigon.ZMB (FSecure)
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.
TECHNICAL DETAILS
752,640 bytes
EXE
No
19 Feb 2012
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:
- %Program Files%\Common Files\Microsoft Shared\MSINFO\rejoice46.exe
(Note: %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.)
Dropping Routine
This backdoor drops the following files:
- %Program Files%\Common Files\Microsoft Shared\MSINFO\SgotoDel.bat
- %System%\_rejoice46.exe
(Note: %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.. %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
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
Search and delete these components
- %Program Files%\Common Files\Microsoft Shared\MSINFO\SgotoDel.bat
- %System%\_rejoice46.exe
Step 3
Scan your computer with your Trend Micro product to delete files detected as BKDR_HUPIGON.QRJ. 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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