WORM_PEPEX.TRM
a variant of Win32/Pepex.L (ESET-NOD32); Win32.Worm.Pepex.Akes (Tencent)
Windows
Threat Type: Worm
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Worm 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
101,888 bytes
EXE
Yes
04 Sep 2017
Arrival Details
This Worm may arrive via network shares.
It arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Autostart Technique
This Worm adds and runs the following services:
- ServiceName: wglmgr
- DisplayName: Windows Genuine Logon Manager
- ImagePath: cmd.exe /c \"net share admin$\"
- ServiceName: wugdtr
- DisplayName: Sound card driver update
- ImagePath: %Windows%\weihp.exe
(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
Propagation
This Worm uses the following file names for the copies it drops into shared networks:
- %Windows%\weihp.exe
(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
Other Details
This Worm does the following:
- It scans the following to check for open port 445:
- Randomly-generated IP address over the Internet or LAN
- If it finds a host either on the LAN/Internet with open port 445, it attempts to remotely create a service and drop its copy in the remote machine.
SOLUTION
9.850
13.644.04
07 Sep 2017
13.645.00
08 Sep 2017
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
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Disable this malware service
- wglmgr
- wugdtr
Step 4
Scan your computer with your Trend Micro product to delete files detected as WORM_PEPEX.TRM. 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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