BKDR_WEBSHELL.KP
Backdoor.PHP.WebShell (Ikarus); Backdoor:PHP/Webshell.O (Microsoft)
Windows
Threat Type: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be hosted on a website and run when a user accesses the said website.
It requires being executed with a specific argument/parameter, an additional component, or in a specific environment in order to proceed with its intended routine.
TECHNICAL DETAILS
Arrival Details
This Backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It may be hosted on a website and run when a user accesses the said website.
Other Details
This Backdoor requires being hosted on a web server in order to proceed with its intended routine.
It requires being executed with a specific argument/parameter, an additional component, or in a specific environment in order to proceed with its intended routine.
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
Close all opened browser windows
Step 3
Scan your computer with your Trend Micro product to delete files detected as BKDR_WEBSHELL.KP. 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 the following Trend Micro Support pages for more information:
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