About “Trojan:Win32/Ymacco.AB50” infection

The Trojan:Win32/Ymacco.AB50 is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Trojan:Win32/Ymacco.AB50 virus can do?

• SetUnhandledExceptionFilter detected (possible anti-debug)
• Presents an Authenticode digital signature
• Creates RWX memory
• A process attempted to delay the analysis task.
• Dynamic (imported) function loading detected
• Performs HTTP requests potentially not found in PCAP.
• Reads data out of its own binary image
• Unconventionial binary language: Chinese (Simplified)
• Unconventionial language used in binary resources: Chinese (Simplified)
• The binary likely contains encrypted or compressed data.
• Authenticode signature is invalid
• Attempts to modify proxy settings
• Harvests cookies for information gathering

How to determine Trojan:Win32/Ymacco.AB50?

File Info:
name: 2FF05C08D9F7E4029D72.mlw
path: /opt/CAPEv2/storage/binaries/505c9ddae9faa1fa45c46f9fde4d394cdc929ed4d1439de7e07829ce507e1e18
crc32: 98864AE3
md5: 2ff05c08d9f7e4029d72be0c992eb28b
sha1: 73d9dad8c39318002881167858ad779a8f30b5e0
sha256: 505c9ddae9faa1fa45c46f9fde4d394cdc929ed4d1439de7e07829ce507e1e18
sha512: 6f326cf711d23d5ecd9c7923c81750455cfc4ddf5006e19e1c037e330caab9e3803285af4d3c2688935e71ccfbeff210d54a02d41410beb6c18e2df8a10c29e1
ssdeep: 24576:K3Bixd/OVkOdxdQVtvvgyySC+2j1kRQbX5H:sVkkHQVtvvgfz3htB
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T16F25F121FB81D172C59B10798EA6E33A6A3AFDD04B2642C3B7D43B6A4E313D15E35346
sha3_384: 84e91fcdc1d012ceeec93317d1494838b18a9e1d6b14a763f31da2275e3f5b55b13ef8930f134bc5f021df572240c534
ep_bytes: e898d50000e979feffffcccccccccccc
timestamp: 2021-11-23 03:25:34

Version Info:
FileDescription: 微端主程序
FileVersion: 3, 0, 0, 0
LegalCopyright: Copyright (C) 2021-2023
ProductName: 微端主程序
ProductVersion: 3, 0, 0, 0
Translation: 0x0804 0x04b0

Trojan:Win32/Ymacco.AB50 also known as:

How to remove Trojan:Win32/Ymacco.AB50?

• Download and install GridinSoft Anti-Malware.
• Open GridinSoft Anti-Malware and perform a “Standard scan“.
• “Move to quarantine” all items.
• Open “Tools” tab – Press “Reset Browser Settings“.
• Select proper browser and options – Click “Reset”.
• Restart your computer.