WORM_EBOOM.AC
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Worm
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Propagates via social networking sites
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
195,072 bytes
EXE
Yes
11 May 2012
Connects to URLs/IPs
Arrival Details
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.
Installation
This worm injects codes into the following process(es):
- IEXPLORE
- chrome
- firefox
- iexplore
- opera
Download Routine
This worm accesses the following websites to download files:
- http://www.{BLOCKED}arding.com/4721605860.txt
NOTES:
This worm terminates and deletes itself when the following conditions are met:
- If file name contains any of the following string:
- malware
- sample
- sand-box
- sandbox
- test
- virus
- If computer name of the affected system is any of the following:
- DELL-D3E62F7E26
- HOME-OFF-D5F0AC
- KAKAPROU-6405DA
- MAKKK
- Malekal
- VMG-CLIENT
- If user names found on the affected system are any of the following:
- DELL-D3E62F7E26
- HOME-OFF-D5F0AC
- KAKAPROU-6405DA
- klasnich
- Mak
- Malekal
- VMG-CLIENT
This worm enumerates entries from the following registry and check for the following virtual environment:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum
VMware
VBox
Virtual
QEMU
It checks if it running in a virtual environment by checking if any of the following files are running in memory:
- cports.exe
- dumpcap.exe
- filemon.exe
- procdump.exe
- procexp.exe
- procmon.exe
- regmon.exe
- regshot.exe
- sbiectrl.exe
- squid.exe
- syssafe.exe
- tcpview
- vbox
- vmsrvc
- vmware
- wireshark.exe
It also checks if opened windows or classes contain any of the following:
- CurrPorts*
- Microsoft Network Monitor 3.3
- Process Monitor - Sysinternals: www.sysinternals.com
- PROCEXPL
- Regshot 1.8.2
- SmartSniff
- TCPViewClass
- The Wireshark Network Analyzer
It also checks if the following files exist:
- %Program Files%\Ethereal\ethereal.html
- %Program Files%\Microsoft Network Monitor 3\netmon.exe
- %Program Files%\WinPcap\rpcapd.exe
- %Program Files%\WireShark\rawshark.exe
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files.)
This worm monitors users' browsing activities such as message posting, deleting posted messages and private messages sent on the following websites:
- Meebo
- MySpace
- WordPress
It may spread by posting messages in the aforementioned sites. The messages posted may contain a URL that leads to its copy.
SOLUTION
9.200
8.988.02
11 May 2012
8.989.00
11 May 2012
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
Scan your computer with your Trend Micro product and note files detected as WORM_EBOOM.AC
Step 3
Restart in Safe Mode
Step 4
Search and delete the file detected as WORM_EBOOM.AC
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as WORM_EBOOM.AC. 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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