Categories: Trojan

Trojan:Win32/Ymacco.AA49 removal guide

The Trojan:Win32/Ymacco.AA49 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Trojan:Win32/Ymacco.AA49 virus can do?

  • Executable code extraction
  • Injection with CreateRemoteThread in a remote process
  • Attempts to connect to a dead IP:Port (3 unique times)
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • Starts servers listening on 0.0.0.0:40919
  • A process created a hidden window
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic
  • Performs some HTTP requests
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • Uses Windows utilities for basic functionality
  • Code injection with CreateRemoteThread in a remote process
  • A process attempted to delay the analysis task by a long amount of time.
  • Tries to unhook or modify Windows functions monitored by Cuckoo
  • Network activity contains more than one unique useragent.
  • Attempts to modify proxy settings
  • Uses suspicious command line tools or Windows utilities

Related domains:

AndyHarrison-PC
cdn.boluobl.cn
2rbwx4hn.p23.tc.cdntip.com
apps.game.qq.com
tudoutd.cn
wpad
sp0.baidu.com
cdn.putaopt.cn
ocsp2.globalsign.com
ocsp.globalsign.com
crl.globalsign.com
crl.globalsign.net

How to determine Trojan:Win32/Ymacco.AA49?


File Info:

crc32: 882C01DEmd5: ec0ef7f24c87887ba2634955100c01c6name: 378314e3e9b8a8fb0654d81e1701a41d.exesha1: 20f7b5fbf2bac80f6a61948702205b292c3c1199sha256: 49c3dd13239408ad7077a8dfc4810eff7e0648447128c071439d15f71807cc38sha512: 22bf615159f8f43d73235fe75e55d4706b89c95dbb5a5b550fa9caf6297d9397a369f4de2566d0acdc9b5621ff6415afdcd41061bb83e83936d3a6664ff9e426ssdeep: 6144:rjVeNYCqiwLA7YLsf5bbNnF2pywlcAL4CnOYNsciyG:3VezqiwLZ4xbxFdw7441Liltype: PE32 executable (GUI) Intel 80386, for MS Windows, PECompact2 compressed

Version Info:

LegalCopyright: Copyright (C) 2020FileVersion: 20, 5, 14, 1ProductVersion: 20, 5, 14, 1Translation: 0x0804 0x04b0

Trojan:Win32/Ymacco.AA49 also known as:

Bkav W32.AIDetectVM.malware2
MicroWorld-eScan Gen:Variant.Graftor.494706
FireEye Generic.mg.ec0ef7f24c87887b
CAT-QuickHeal Backdoor.Gulpix
Qihoo-360 Win32/Backdoor.77f
ALYac Gen:Variant.Graftor.494706
VIPRE Trojan-Spy.Win32.Zbot.gen (v)
K7AntiVirus Trojan ( 005242611 )
BitDefender Gen:Variant.Graftor.494706
K7GW Trojan ( 005242611 )
Cybereason malicious.24c878
Invincea heuristic
BitDefenderTheta Gen:NN.ZexaF.34132.rm0fa4QG03ej
Cyren W32/Graftor.FI.gen!Eldorado
Symantec ML.Attribute.HighConfidence
TrendMicro-HouseCall TROJ_GEN.R002C0PG120
Paloalto generic.ml
GData Gen:Variant.Graftor.494706
Kaspersky HEUR:Backdoor.Win32.Gulpix.vho
Alibaba Backdoor:Win32/Gulpix.7f301938
AegisLab Trojan.Win32.Gulpix.m!c
Rising Backdoor.Gulpix!8.3DA (CLOUD)
Ad-Aware Gen:Variant.Graftor.494706
Sophos Mal/Behav-010
Comodo Malware@#17e50e4vgykdj
F-Secure Heuristic.HEUR/AGEN.1103265
TrendMicro TROJ_GEN.R002C0PG120
Emsisoft Gen:Variant.Graftor.494706 (B)
Ikarus Backdoor.Win32.Zegost
F-Prot W32/Graftor.FI.gen!Eldorado
Avira HEUR/AGEN.1103265
MAX malware (ai score=80)
Endgame malicious (high confidence)
Arcabit Trojan.Graftor.D78C72
ZoneAlarm HEUR:Backdoor.Win32.Gulpix.vho
Microsoft Trojan:Win32/Ymacco.AA49
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Agent.C3143770
McAfee Artemis!EC0EF7F24C87
VBA32 BScope.Trojan.Tiggre
Cylance Unsafe
Panda Trj/GdSda.A
APEX Malicious
ESET-NOD32 a variant of Win32/Agent.ZJL
Tencent Win32.Backdoor.Gulpix.Ajvi
Fortinet W32/Gulpix.VHO!tr
AVG Win32:MalwareX-gen [Trj]
Avast Win32:MalwareX-gen [Trj]
CrowdStrike win/malicious_confidence_80% (W)

How to remove Trojan:Win32/Ymacco.AA49?

  • 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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