WORM_PALEVO.SMD
Windows 98, ME, NT, 2000, XP, Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type:
Destructiveness:
Encrypted:
In the wild: Yes
OVERVIEW
This Worm adds registry entries to enable its automatic execution at every system startup.
TECHNICAL DETAILS
Installation
This Worm drops the following files:
- C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-1455\Desktop.ini
It drops the following copies of itself into the affected system:
- C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-1455\psyjo3.exe
Autostart Technique
This Worm adds the following registry entries to enable its automatic execution at every system startup:
Other System Modifications
This Worm adds the following registry keys:
SOLUTION
Step 1
Terminate the malware/grayware/spyware process:
Step 2
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.
- HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\Winlogon
- Taskman=C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-1455\psyjo3.exe
- HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\WINDOWS NT\CURRENTVERSION\Winlogon\Shell
- explorer.exe,C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-1455\psyjo3.exe=REG_SZ
- HKEY_CURRENT_USER\SOFTWARE\MICROSOFT\Windows\CURRENTVERSION\Run\psysjo3
- C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-1455\psyjo3.exe=REG_SZ
Step 3
Search and delete these files
- C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-1455\Desktop.ini
- C:\RECYCLER\S-1-5-21-0243556031-888888379-781863308-1455\psyjo3.exe
Note: To do a search for the following files, right-click Start then click Search... or Find..., depending on the version of Windows you are running.For each file to be deleted, type its file name in the Named input box. In the Look In drop-down list, select My Computer, then press Enter.
Step 4
Scan your computer with your Trend Micro product to delete files detected as
WORM_PALEVO.SMD
*Note: 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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