WORM_ZEROLL.A
Windows 2000, XP, Server 2003
Threat Type: Worm
Destructiveness: No
Encrypted: No
In the wild: Yes
TECHNICAL DETAILS
Varies
EXE
Yes
01 Sep 2010
Drops files
Installation
This worm adds the following folders:
- C:\Documents and Settings\{username}\Application Data\HEX-5823-6893-6818
It drops the following copies of itself into the affected system:
- C:\Documents and Settings\{username}\Application Data\HEX-5823-6893-6818\jusched.exe
Autostart Technique
This worm adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Java Update Manager = C:\Documents and Settings\{username}\Application Data\HEX-5823-6893-6818\jusched.exe
Other System Modifications
This worm adds the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\AuthorizedApplications\
List
C:\Documents and Settings\{username}\Application Data\HEX-5823-6893-6818\jusched.exe = C:\Documents and Settings\{username}\Application Data\HEX-5823-6893-6818\jusched.exe:*:Enabled:Java Update Manager
Propagation
This worm sends the following messages using the aforementioned Instant Messaging applications:
This is the funniest photo ever!
This is the funniest photo ever! http://www.ncuadre.net/Aleksandra-Sexyy.JPG
Wie findest du das Foto?
bekijk deze foto :D
bu resmi bakmak :D
dette bildet :D
guardare quest'immagine :D
katso t kuvaa :D
olhar para esta foto :D
pogledaj to slike :D
poglej to fotografijo :D
pozrite sa na t to fotografiu :D
regardez cette photo :D
seen this?? :D
ser p dette billede :D
spojrzec na to zdjecie :D
titta p denna bild :D
uita-te la aceasta fotografie :D
vejte se na mou fotku :D
zd meg a k pet :D
It sends messages that contain links to sites hosting remote copies of itself using the following instant-messaging (IM) applications:
- Google Talk
- ICQ
- MSN Messenger
- Paltalk
- Skype
- Xfire
- Yahoo Messenger
Dropping Routine
This worm drops the following files:
- %System%\winrtsnr.txt - non-malicious file
(Note: %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.)
SOLUTION
8.900
7.428.05
01 Sep 2010
9/1/2010 12:00:00 AM
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
Restart in Safe Mode
Step 3
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\Run
- Java Update Manager=C:\Documents and Settings\{username}\Application Data\HEX-5823-6893-6818\jusched.exe
- Java Update Manager=C:\Documents and Settings\{username}\Application Data\HEX-5823-6893-6818\jusched.exe
- In HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List
- C:\Documents and Settings\{username}\Application Data\HEX-5823-6893-6818\jusched.exe=C:\Documents and Settings\{username}\Application Data\HEX-5823-6893-6818\jusched.exe:*:Enabled:Java Update Manager
- C:\Documents and Settings\{username}\Application Data\HEX-5823-6893-6818\jusched.exe=C:\Documents and Settings\{username}\Application Data\HEX-5823-6893-6818\jusched.exe:*:Enabled:Java Update Manager
Step 4
Search and delete this file
Step 5
Search and delete this folder
Step 6
Scan your computer with your Trend Micro product to delete files detected as WORM_ZEROLL.A. 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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