Backdoor.ASP.WEBSHELL.KEPN
Trojan.ASP.Webshell (IKARUS)
Linux, Windows
Threat Type: Backdoor
Destructiveness: No
Encrypted: No
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
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 does not have any propagation routine.
It executes commands from a remote malicious user, effectively compromising the affected system.
TECHNICAL DETAILS
13,002 bytes
TMP
No
04 Jun 2024
Collects system information, Executes commands
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.
Propagation
This Backdoor does not have any propagation routine.
Backdoor Routine
This Backdoor executes the following commands from a remote malicious user:
- List logical drives
- List directories and files in a specified path
- Read the contents of a file
- Write data to a file
- Delete a directory or a file
- Serve a file to the client
- Write binary data to a file
- Copy files and directories
- Move a directory or a file
- Create a new directory
- Change timestamps of a file or directory
- Download a file from a URL
- Execute a process and capture its output
- Connect to a SQL database and return its name
- Retrieve and list database schema information
- List columns of a specific table
- Execute a SQL query or command
Rootkit Capabilities
This Backdoor does not have rootkit capabilities.
Information Theft
This Backdoor gathers the following data:
- List of logical drives in the server
- List of directories and files in a specified path
- Contents of a specified file
- Output of an executed process
- SQL database name
- List of SQL database schema information
- List of columns of a specified table in a SQL database
- Output of a SQL query or command
Other Details
This Backdoor does not exploit any vulnerability.
It requires being hosted on a web server in order to proceed with its intended routine.
SOLUTION
9.800
15.198.04
26 Jun 2019
15.199.00
27 Jun 2019
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 2
Scan your computer with your Trend Micro product to delete files detected as Backdoor.ASP.WEBSHELL.KEPN. 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:
Did this description help? Tell us how we did.