PHP_SHELLC.SMOD
Backdoor.PHP.PhpShell.by(Kaspersky),PHP/C99Shell.G trojan(NOD32),PHP/C99Shell.B(Panda)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
Threat Type: Backdoor
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet
This backdoor may be hosted on a website and run when a user accesses the said website.
It executes commands from a remote malicious user, effectively compromising the affected system.
TECHNICAL DETAILS
Varies
Other
No
30 Apr 2014
Connects to URLs/IPs
Arrival Details
This backdoor may be hosted on a website and run when a user accesses the said website.
Backdoor Routine
This backdoor executes the following commands from a remote malicious user:
- Change file permissions
- Copy file/folder
- Delete file
- Create folder
- Upload file
- Download file
- File system search
- Connect to MySQL and perform query and dumping
- Gather system information
- Send an email
- List running processes
- Execute a shell command
- List files/folders
- Move a folder
Download Routine
This backdoor downloads an updated copy of itself from the following website(s):
- http://www.{BLOCKED}hka.ru/poll/fx29sh_update.php
NOTES:
This malware is a PHP script in compromised web servers that wait for a connection from a remote host. Once a connection is established, a remote malicious user may then execute malicious commands that are passed as parameters to HTTP requests.
SOLUTION
9.700
7.275.00
29 Jul 2010
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
Close all opened browser windows
Step 3
Scan your computer with your Trend Micro product to delete files detected as PHP_SHELLC.SMOD. 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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