Backdoor.Win32.EXSEEG.A
Windows
Threat Type: Backdoor
Destructiveness: No
Encrypted: Yes
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 executes commands from a remote malicious user, effectively compromising the affected system. It connects to a website to send and receive information.
It deletes itself after execution.
TECHNICAL DETAILS
108,050 bytes
PS1
Yes
26 Nov 2018
Steals information, Connects to URLs/IPs, Terminates processes, Logs keystrokes, Executes files, Others
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.
Backdoor Routine
This Backdoor executes the following commands from a remote malicious user:
- Connect and Disconnect to C&C Server
- Perform request of specific files from the C&C Server
- Execute commands or codes
- Execute files
- Check registries of interest from C&C Server
- Capture Screenshots
- Log Keystrokes
- Upload files to C&C Server
- Unzip downloaded file
- Download Files
- Compress a file
- Download file that is compressed
- Stop/Kill Keyboard
- Stop Downloads from the C&C Server
- Terminate a Process
- Process Injection
- Delete Files
- Rename Files
- Delete Registry entries
- Create and Rename Registry Entries
- Create New Directory/Folders
- Delay Request Time/Response from C&C Server
- Modify Browser User Agent
- Check if a process is still alive/running (Probably a downloaded file from the C&C Server)
It connects to the following websites to send and receive information:
- {BLOCKED}.{BLOCKED}.{BLOCKED}.230
Information Theft
This Backdoor gathers the following data:
- Computer Name
- Username
- Current User
- OS Version
- OS Language
- OS Architecture
- Last Boot Up Time
- Country Code
Other Details
This Backdoor deletes itself after execution.
SOLUTION
9.850
14.650.05
26 Nov 2018
14.651.00
27 Nov 2018
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
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Scan your computer with your Trend Micro product to delete files detected as Backdoor.Win32.EXSEEG.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 the following Trend Micro Support pages for more information:
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