Categories: Trojan

Trojan.Zapchast.F (file analysis)

The Trojan.Zapchast.F 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.Zapchast.F virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Dynamic (imported) function loading detected
  • Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution
  • A process created a hidden window
  • Executed a command line with /V argument which modifies variable behaviour and whitespace allowing for increased obfuscation options
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • A process attempted to delay the analysis task by a long amount of time.
  • Installs itself for autorun at Windows startup
  • Anomalous binary characteristics

How to determine Trojan.Zapchast.F?


File Info:

name: 3662906A637487CCA975.mlwpath: /opt/CAPEv2/storage/binaries/e5ecc25a4c21ea5d0910b800f4301d5c18b9293769f7ff91a87797cae36b431fcrc32: D5A5966Dmd5: 3662906a637487cca975178865400d70sha1: 32bb96f43cfd3b296ee2e9f76e718db4d6a991d8sha256: e5ecc25a4c21ea5d0910b800f4301d5c18b9293769f7ff91a87797cae36b431fsha512: 74a4c2346fb3f19a8d4e29c0558818d8ff722edf1f75f23f33b6dacc9cb41e8bc417318f9c4c439f91dedc19a375004ca4a92dbdb486b9a89e5ccf8509582e70ssdeep: 96:nPf2xLutAH5kwP2CFPSs9gQS2DLF976wi0g7AbwdB+AFWjc+J:nGxLutAH6fCks66RU0g7YAFWjc+Jtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1C4023966E8A3C871E388DABD6C9A425EEB7F32303D5E50061DCB5CD8CD6E3C0841C615sha3_384: c360097855a9faeeaee28c4907087badb4be545df43f64095bca6d72d84a3df1d218a1c8860949377de345b9a68f1232ep_bytes: 558bec83c4f0b8081f4000e84cfefffftimestamp: 1992-06-19 22:22:17

Version Info:

0: [No Data]

Trojan.Zapchast.F also known as:

Elastic malicious (high confidence)
Cynet Malicious (score: 100)
FireEye Generic.mg.3662906a637487cc
ALYac Trojan.Zapchast.F
Cylance Unsafe
Zillya Trojan.Zapchast.Win32.14637
Sangfor Trojan.Win32.Zapchast.fkkc
K7AntiVirus Riskware ( 0040eff71 )
Alibaba Trojan:Win32/Zapchast.d5c86a72
K7GW Riskware ( 0040eff71 )
Cybereason malicious.a63748
Cyren W32/Trojan.YBSB-3245
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Generik.DZMEISU
APEX Malicious
Paloalto generic.ml
Kaspersky Trojan.Win32.Zapchast.f
BitDefender Trojan.Zapchast.F
NANO-Antivirus Trojan.Win32.Small.fxum
MicroWorld-eScan Trojan.Zapchast.F
Avast Win32:Trojan-gen
Tencent Win32.Trojan.Zapchast.Ljkc
Ad-Aware Trojan.Zapchast.F
Sophos Mal/Generic-S
Comodo Malware@#1jl2w318uuugv
DrWeb BackDoor.Iroffer.1430
VIPRE Trojan.MSIL.Zapchast.!pj
TrendMicro TROJ_GEN.R002C0PKS21
McAfee-GW-Edition Generic Delphi.b
Emsisoft Trojan.Zapchast.F (B)
Ikarus Trojan.Zapchast
GData Trojan.Zapchast.F
Jiangmin Trojan/Zapchast.iii
Antiy-AVL Trojan/Generic.ASMalwS.94D29
Kingsoft Win32.Troj.Zapchast.f.(kcloud)
Arcabit Trojan.Zapchast.F
Microsoft Trojan:Win32/Skeeyah.A!rfn
McAfee Generic Delphi.b
MAX malware (ai score=100)
VBA32 BScope.Trojan.Zapchast
Malwarebytes Malware.Heuristic.1006
TrendMicro-HouseCall TROJ_GEN.R002C0PKS21
Rising Trojan.Zapchast.b (CLASSIC)
Yandex Trojan.Zapchast!EIlMz4Qav/g
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Zapchast.F!tr
BitDefenderTheta Gen:NN.ZelphiF.34062.aGW@aydr1Od
AVG Win32:Trojan-gen
Panda Trj/Zapchast.CK
CrowdStrike win/malicious_confidence_90% (W)

How to remove Trojan.Zapchast.F?

  • 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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