Categories: Trojan

Trojan:Win32/CryptInject.YAA!MTB (file analysis)

The Trojan:Win32/CryptInject.YAA!MTB 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/CryptInject.YAA!MTB virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Unconventionial language used in binary resources: Rhaeto (Romance)
  • The binary likely contains encrypted or compressed data.
  • Network activity detected but not expressed in API logs

How to determine Trojan:Win32/CryptInject.YAA!MTB?


File Info:

crc32: B0BE33AFmd5: dd11f4bb5616de83afa1d5e353dad9aaname: DD11F4BB5616DE83AFA1D5E353DAD9AA.mlwsha1: 4bcc052c9b8c0c9235633b69d0cb53a943cef7bbsha256: 0a58ec30295f49522bb3f482ade82337e088d01dfb5f1c8a27024402202ca892sha512: 721e1332a48938b219bf79d79522a12351bc0d9e5c2be8adad7585da31dcf63f481a7a8789273c3c6ae97c7835e571439968cddfb044532d23da474563f6a9b3ssdeep: 6144:ix6nSsJgaowzp8/p5JSU29dWteliqvLGlupLHpSCrhHiceDiqfBP9DaOzQa:iYSIowi/nJU9dWIlB9pDpNKiyP8OzQatype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

InternalName: gyukduyk.exeFileVersion: 1.0.5.4Translation: 0x0761 0x04c4

Trojan:Win32/CryptInject.YAA!MTB also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00554fd81 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.28004
ClamAV Win.Packed.Generic-9853074-1
CAT-QuickHeal Ransom.Stop.MP4
ALYac Trojan.Ransom.Sodinokibi
Malwarebytes Trojan.MalPack.GS
Zillya Trojan.Kryptik.Win32.1696466
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/CryptInject.4a3209cc
K7GW Trojan ( 00554fd81 )
Cybereason malicious.b5616d
Cyren W32/S-d71fed49!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GVFV
APEX Malicious
Avast Win32:Trojan-gen
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.BrsecmonE.1
NANO-Antivirus Trojan.Win32.Encoder.fvcxvk
MicroWorld-eScan Trojan.BrsecmonE.1
Tencent Win32.Trojan.Generic.Wrpx
Ad-Aware Trojan.BrsecmonE.1
Sophos ML/PE-A + Mal/GandCrab-G
BitDefenderTheta Gen:NN.ZexaF.34236.xy0@auRnC5fG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Trojan.Win32.SODINOK.SM.hp
McAfee-GW-Edition BehavesLike.Win32.Generic.fh
FireEye Generic.mg.dd11f4bb5616de83
Emsisoft Trojan.BrsecmonE.1 (B)
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1107506
Antiy-AVL Trojan/Generic.ASMalwS.2C2B3AB
Microsoft Trojan:Win32/CryptInject.YAA!MTB
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.BrsecmonE.1
AhnLab-V3 Trojan/Win32.MalPe.R285134
Acronis suspicious
McAfee Artemis!DD11F4BB5616
MAX malware (ai score=82)
VBA32 BScope.Trojan.Wacatac
Panda Trj/GdSda.A
TrendMicro-HouseCall Trojan.Win32.SODINOK.SM.hp
Rising Trojan.Kryptik!1.BAFA (CLASSIC)
Yandex Trojan.Agent!nFGDEPTL6xo
Ikarus Trojan.Win32.Midrami
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/Kryptik.GVOI!tr
AVG Win32:Trojan-gen
Paloalto generic.ml

How to remove Trojan:Win32/CryptInject.YAA!MTB?

  • 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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