Windows
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 takes advantage of certain vulnerabilities.
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:
Other Details
This Backdoor does the following:
It takes advantage of the following vulnerabilities:
It requires being hosted on a web server in order to proceed with its intended routine.
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
Download and apply these security patches Refrain from using these products until the appropriate patches have been installed. Trend Micro advises users to download critical patches upon release by vendors. https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0604
Step 3
Scan your computer with your Trend Micro product to delete files detected as Backdoor.ASP.CHOPSHELL.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: