Categories: Trojan

Trojan:MSIL/FormBook.I!MTB removal guide

The Trojan:MSIL/FormBook.I!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:MSIL/FormBook.I!MTB virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Creates RWX memory
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Uses Windows utilities for basic functionality
  • Executed a process and injected code into it, probably while unpacking
  • Steals private information from local Internet browsers
  • Network activity detected but not expressed in API logs
  • Harvests credentials from local FTP client softwares
  • Harvests information related to installed instant messenger clients

How to determine Trojan:MSIL/FormBook.I!MTB?


File Info:

crc32: E4D08B28md5: 83a61c0853987c2ee3f5cd30763aa887name: 83A61C0853987C2EE3F5CD30763AA887.mlwsha1: b6ffb818d94c77ab626fe513522ccf75bd84ae7bsha256: de86e4f97202c410712eae65ca5145961a5da4ec6ff06bcb54ce16df3eac8f92sha512: a9b079493850f4bc1e19c4363ac5a5ab2031b7185ca805a60ea18ede40371ba73f1e356b49657ff8bf2eb2ca3cc0fe4a155b7d4ccc353cf71d27d6b5287837d9ssdeep: 12288:sRHS2JvgaZG2JVqhlEixRST5rE1xtUYgE:sRk2ShlEUosuEtype: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0LegalCopyright: Assembly Version: 1.0.0.0InternalName: img2.exeFileVersion: 1.0.0.0ProductVersion: 1.0.0.0FileDescription: OriginalFilename: img2.exe

Trojan:MSIL/FormBook.I!MTB also known as:

DrWeb Trojan.Siggen1.39351
MicroWorld-eScan Gen:Variant.MSIL.Lynx.8
FireEye Generic.mg.83a61c0853987c2e
McAfee GenericRXFV-JV!83A61C085398
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Riskware ( 0015e4f01 )
BitDefender Gen:Variant.MSIL.Lynx.8
K7GW Riskware ( 0015e4f01 )
Cybereason malicious.853987
BitDefenderTheta Gen:NN.ZemsilF.34804.ym0@aCg7OZh
Cyren W32/MSIL_Troj.R.gen!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast MSIL:Inject-BS [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Trojan:MSIL/FormBook.48d0948b
NANO-Antivirus Trojan.Win32.TrjGen.dbxxjr
Tencent Win32.Trojan.Generic.Eane
Ad-Aware Gen:Variant.MSIL.Lynx.8
Sophos Mal/Generic-R + Troj/MSIL-ITR
Comodo Malware@#1usve69lhl1dl
F-Secure Trojan.TR/Injector.EA.1
Zillya Trojan.Injector.Win32.130863
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
Emsisoft Gen:Variant.MSIL.Lynx.8 (B)
Ikarus Trojan-Dropper.Small
Jiangmin Trojan/Generic.dxqq
Webroot W32.Malware.Gen
Avira TR/Injector.EA.1
Antiy-AVL Trojan/Win32.AGeneric
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:MSIL/FormBook.I!MTB
Arcabit Trojan.MSIL.Lynx.8
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.MSIL.Lynx.8
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Dynamer.R163018
Acronis suspicious
VBA32 TScope.Trojan.MSIL
ALYac Gen:Variant.MSIL.Lynx.8
MAX malware (ai score=100)
Malwarebytes Malware.AI.1098676934
Panda Generic Malware
ESET-NOD32 a variant of MSIL/Injector.BYR
Rising Trojan.Generic!8.C3 (CLOUD)
Yandex Trojan.Injector!oVa8dOVgTJA
SentinelOne Static AI – Malicious PE
eGambit Trojan.Generic
Fortinet MSIL/Injector.BYR!tr
MaxSecure Trojan.Malware.300983.susgen
AVG MSIL:Inject-BS [Trj]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 HEUR/Malware.QVM03.Gen

How to remove Trojan:MSIL/FormBook.I!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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