BKDR_HUPIGO.RO
Backdoor:Win32/Hupigon.CK (Microsoft); W32/Autorun.worm.g (McAfee); Backdoor.Trojan (Symantec); Backdoor.Win32.Hupigon.ojad (Kaspersky); BehavesLike.Win32.Malware.eah (mx-v) (Sunbelt); Backdoor.Hupigon.157763 (FSecure)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild:
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
297,984 bytes
EXE
30 Sep 2011
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:
- %System Root%\Se81.exe
- %Windows%\Se81.exe
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)
Other System Modifications
This backdoor deletes the following files:
- {malware path and file name}
Dropping Routine
This backdoor drops the following files:
- %System Root%\AutoRun.inf
- %Windows%\paramstr.txt
- %System%\_Se81.exe
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.. %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
Search and delete these files
- %System Root%\AutoRun.inf
- %Windows%\paramstr.txt
- %System%\_Se81.exe
Step 3
Scan your computer with your Trend Micro product to delete files detected as BKDR_HUPIGO.RO. 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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