PE_LOOKED.ZM
Virus:Win32/Viking.X (Microsoft), W32.Looked.P (Symantec), W32/HLLP.Philis.bg (McAfee)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: File infector
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
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This file infector 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
Arrival Details
This file infector 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 file infector drops the following files:
- %Windows%\Dll.dll
- %Windows%\Logo1_.exe
- %Windows%\rundl132.exe
(Note: %Windows% is the Windows folder, which is usually C:\Windows.)
Autostart Technique
This file infector adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Windows
load = "%Windows%\rundl132.exe"
Other System Modifications
This file infector adds the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Soft\
DownloadWWW
HKEY_LOCAL_MACHINE\SOFTWARE\Soft
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Soft\
DownloadWWW
auto = "1"
File Infection
This file infector infects the following file types:
- .EXE
It searches for target files in the following drives:
- C to Z
Other Details
This file infector connects to the following possibly malicious URL:
- http://domains.{BLOCKED}mba.net/333.txt
NOTES:
This file infector drops the following file(s) to every directory except the Windows folder and its sub-folders:
- _desktop.ini
SOLUTION
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
Identify and terminate files detected as PE_LOOKED.ZM
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
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_LOCAL_MACHINE\SOFTWARE
- Soft
- Soft
Step 4
Delete this registry value
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_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Windows
- load = "%Windows%\rundl132.exe"
- load = "%Windows%\rundl132.exe"
Step 5
Search and delete these files
- %Windows%\Dll.dll
- %Windows%\Logo1_.exe
- %Windows%\rundl132.exe
- _desktop.ini
Step 6
Scan your computer with your Trend Micro product to delete files detected as PE_LOOKED.ZM. 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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