- Threat Encyclopedia
- Malware
- Trojan.JS.AVADDON.YJAF-A
Trojan:Win32/AggBITSAbuse.A (MICROSOFT); PowerShell/TrojanDownloader.Agent.DV trojan (NOD32)
Windows
Downloaded from the Internet
This Trojan 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 the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
408 bytes
JS
No
10 Jun 2020
Connects to URLs/IPs, Downloads files
Arrival Details
This Trojan 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 Trojan adds the following processes:
Download Routine
This Trojan downloads the file from the following URL and renames the file when stored in the affected system:
It saves the files it downloads using the following names:
It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
9.850
15.924.02
11 Jun 2020
15.925.00
12 Jun 2020
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
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 Trojan.JS.AVADDON.YJAF-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: