Categories: Trojan

Should I remove “Trojan:Win32/Ymacco.AB8C”?

The Trojan:Win32/Ymacco.AB8C 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.AB8C virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Dynamic (imported) function loading detected
  • Enumerates running processes
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Collects and encrypts information about the computer likely to send to C2 server
  • Installs itself for autorun at Windows startup
  • Attempts to masquerade or mimic a legitimate process or file name

How to determine Trojan:Win32/Ymacco.AB8C?


File Info:

name: EB29700D436FEA1993FC.mlwpath: /opt/CAPEv2/storage/binaries/8ce9cebf87bc5092ba14147dc972af8c5190b346e940b00092acb91e4eb01c2ccrc32: 9A0B1030md5: eb29700d436fea1993fc487e0c72b049sha1: 3e59868f8a196e49ec8b4c6a5c2666b7190cc90bsha256: 8ce9cebf87bc5092ba14147dc972af8c5190b346e940b00092acb91e4eb01c2csha512: b955da2710e5186732b1fa10c2569e77a897c5fe0a30bdd8c621d26903d3908c4666f333eecfa638cae1122fc47eef0bc8904ba10fcea95cecb6336972428adassdeep: 6144:EuIlWqB+ihabs7Ch9KwyF5LeLodp2D1Mmakda0qLqI0ks3ih1XGWP:v6Wq4aaE6KwyF5L0Y2D1PqL43c2Itype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1C57423EA7694E502E86C0372F5571381C5E07931A7B8EB3F7050BA0B7CEF0156D9B649sha3_384: b2c38f5bd1f1d35db6ee6367b3fdf44936275d8660af662a38586f363744774527d3d219f21d3682421c9125ee09307fep_bytes: 60be007047008dbe00a0f8ff57eb0b90timestamp: 2012-01-29 21:32:28

Version Info:

FileDescription: FileVersion: 3, 3, 8, 1CompiledScript: AutoIt v3 Script: 3, 3, 8, 1Translation: 0x0809 0x04b0

Trojan:Win32/Ymacco.AB8C also known as:

Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Autoit.4!c
MicroWorld-eScan Trojan.GenericKD.34502385
FireEye Trojan.GenericKD.34502385
CAT-QuickHeal Trojan.AutoIt.Pistolar.A
McAfee Artemis!EB29700D436F
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
K7AntiVirus Trojan ( 700000111 )
BitDefender Trojan.GenericKD.34502385
K7GW Trojan ( 700000111 )
Cybereason malicious.d436fe
Baidu AutoIt.Worm.Agent.a
VirIT Trojan.Win32.Generic.BGXQ
Cyren W32/AutoIt.RT.gen!Eldorado
Symantec AUT.Heuristic!gen10
ESET-NOD32 a variant of Win32/Autoit.OH
APEX Malicious
Paloalto generic.ml
ClamAV Win.Malware.Autoit-7535251-0
Kaspersky Trojan.Win32.Autoit.aza
Alibaba Worm:Win32/Svhoder.fd98ac62
ViRobot Trojan.Win32.Z.Autoit.356837.B
Rising Dropper.Pistolar/Autoit!1.A603 (CLASSIC)
Sophos ML/PE-A + Troj/AutoIt-DAV
DrWeb Trojan.DownLoader6.7475
Zillya Trojan.AutoIT.Win32.14073
TrendMicro TROJ_GEN.R002C0CB122
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
Emsisoft Trojan.GenericKD.34502385 (B)
Jiangmin Trojan.MSIL.Zapchast.ag
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1105599
MAX malware (ai score=80)
Antiy-AVL GrayWare/Autoit.Wacatac.a
Microsoft Trojan:Win32/Ymacco.AB8C
GData Trojan.GenericKD.34502385
Cynet Malicious (score: 100)
ALYac Trojan.GenericKD.34502385
VBA32 Trojan.Autoit.Wirus
Malwarebytes Malware.AI.1553765799
TrendMicro-HouseCall TROJ_GEN.R002C0CB122
Ikarus Trojan.Win32.Autoit
MaxSecure Win.MxResIcn.Heur.Gen
Fortinet W32/Sohana.A!tr
AVG AutoIt:Agent-DP [Trj]
Avast AutoIt:Agent-DP [Trj]
CrowdStrike win/malicious_confidence_90% (W)

How to remove Trojan:Win32/Ymacco.AB8C?

  • 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.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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