Backdoor.Win64.WINNTI.AI
Win64:Trojan-gen(AVAST), Trojan.Win64.Motnug(IKARUS)
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 executes commands from a remote malicious user, effectively compromising the affected system.
It connects to certain websites to send and receive information.
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.
Installation
This Backdoor adds the following mutexes to ensure that only one of its copies runs at any one time:
- MagicgdBkXg==
Backdoor Routine
This Backdoor executes the following commands from a remote malicious user:
- Execute Arbitrary Commands
Information Theft
This Backdoor gathers the following data:
- Username
- Computername
- OS Version
- IP Address
Other Details
This Backdoor connects to the following website to send and receive information:
- http://exchange.dumb1.com/jquery-3.3.1.min.js
It does the following:
- It terminates itself immediately if the current year is lower than 2019 or greater than 2021
SOLUTION
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.Win64.WINNTI.AI. 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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