Categories: SpyTrojan

About “Trojan:Win32/Spy.BYF!MTB” infection

The Trojan:Win32/Spy.BYF!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/Spy.BYF!MTB virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Detected script timer window indicative of sleep style evasion
  • Reads data out of its own binary image
  • A process created a hidden window
  • The binary likely contains encrypted or compressed data.
  • A scripting utility was executed
  • Network activity detected but not expressed in API logs
  • Anomalous binary characteristics

How to determine Trojan:Win32/Spy.BYF!MTB?


File Info:

crc32: DD6EAE38md5: f5f98e9d5988a61cc93e2109a46bc692name: F5F98E9D5988A61CC93E2109A46BC692.mlwsha1: fc752878e3799af94bb9ba18a81c3ea30bb62c7fsha256: 3efcb8ffc0871fbd704dda0cd992a68487b3ba875e8d16053758a2bc2645cb8esha512: 5ba1c40c88d58f2a73fecfcfebd8d6c170a67d6d7d62a8e6c4760328643668fc1dc0feedf4d0f18c3c9f4b9cb40d04ea944a7d4dd6dc1171845d734c743420f5ssdeep: 24576:bAxfz/hxXK9oegoFeFkvkoMbmsYldE/qd18kkm39mNmuY8HE5yUu+9MBDdLdI678:bafa2eg7mkowmsYllbPiY8kyUp9Mr8type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan:Win32/Spy.BYF!MTB also known as:

Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb BackDoor.QuasarNET.3
Cynet Malicious (score: 100)
McAfee Artemis!F5F98E9D5988
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (W)
Cybereason malicious.d5988a
Symantec Trojan.Gen.MBT
ESET-NOD32 a variant of Win32/Packed.EnigmaProtector.J suspicious
APEX Malicious
Avast Win32:KeyloggerX-gen [Trj]
ClamAV Win.Malware.Agen-9838187-0
Kaspersky HEUR:Trojan-Spy.MSIL.Stealer.gen
BitDefender Gen:Variant.Barys.101505
MicroWorld-eScan Gen:Variant.Barys.101505
Ad-Aware Gen:Variant.Barys.101505
Sophos Generic ML PUA (PUA)
BitDefenderTheta Gen:NN.ZemsilF.34738.um0@amYNoAc
TrendMicro TROJ_GEN.R005C0PF821
McAfee-GW-Edition BehavesLike.Win32.Generic.tc
FireEye Generic.mg.f5f98e9d5988a61c
Emsisoft Gen:Variant.Barys.101505 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Dropper.Gen
eGambit Unsafe.AI_Score_100%
Antiy-AVL Trojan/Generic.ASBOL.C669
Microsoft Trojan:Win32/Spy.BYF!MTB
Gridinsoft Malware.Win32.Gen.bot!se60798
GData Gen:Variant.Barys.101505
AhnLab-V3 Trojan/Win.Agent.R416414
VBA32 Trojan.Zpevdo
MAX malware (ai score=83)
Malwarebytes Malware.AI.4011115382
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_GEN.R005C0PF821
Rising PUF.Pack-Enigma!1.BA33 (CLASSIC)
Ikarus Trojan-Spy.Agent
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/Agent.BYF!tr.spy
AVG Win32:KeyloggerX-gen [Trj]

How to remove Trojan:Win32/Spy.BYF!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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