Categories: Trojan

What is “Trojan:Win32/FormBook.AFB!MTB”?

The Trojan:Win32/FormBook.AFB!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/FormBook.AFB!MTB virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Sample contains Overlay data
  • Uses Windows utilities for basic functionality
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Behavioural detection: Injection (inter-process)
  • CAPE detected the Formbook malware family
  • Deletes executed files from disk
  • Uses suspicious command line tools or Windows utilities
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Trojan:Win32/FormBook.AFB!MTB?


File Info:

name: ABFD498F0C51F1904907.mlwpath: /opt/CAPEv2/storage/binaries/6681d28999c393ab5e78633c678241d7ba798b2dc792e4c6eb63c664ee940178crc32: 451B0248md5: abfd498f0c51f1904907a901b1e7631fsha1: 78341662f41806a77503f7dc7c70a90a516077f0sha256: 6681d28999c393ab5e78633c678241d7ba798b2dc792e4c6eb63c664ee940178sha512: 0643be06ca6a42b6baad671da02f9c7383bcd3c4fb5430680cd33d78abb1cfaba3b960c10251811869fe0a61e3e1ace83f361e92e4a7ad7e8162773b5fa47120ssdeep: 3072:39zEK4Ue9Zcr37e4URdFpub8HjFDBikrvNiFd4hzE/Pq040di/4vQl:Z4OD77URnpub8DFJrv88zYZYgvQtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1DE04AE32D641C471E2B212B4F67D0B7B883E0E34365594AAA3F116E16FE18A5B53E31Fsha3_384: 2228c7b7092b187efb9a89e749e6543948591e7250aa46a1ac314a77b15a0e780b5c3e8046c27bce3bcc1acb8e398c78ep_bytes: 558bec83ec64e855c9ffff8be55dc3e8timestamp: 2007-07-20 00:33:02

Version Info:

0: [No Data]

Trojan:Win32/FormBook.AFB!MTB also known as:

Bkav W32.AIDetectMalware
Lionic Trojan.Win32.Generic.4!c
MicroWorld-eScan Gen:Variant.Razy.769934
FireEye Generic.mg.abfd498f0c51f190
CAT-QuickHeal Trojan.Generic
McAfee GenericRXCD-ZZ!ABFD498F0C51
Cylance unsafe
Sangfor Suspicious.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Formbook.b68eac07
K7GW Trojan ( 00536d121 )
K7AntiVirus Trojan ( 00536d121 )
BitDefenderTheta AI:Packer.429E82A81E
Cyren W32/Formbook.F.gen!Eldorado
Symantec Trojan.Formbook
Elastic Windows.Trojan.Formbook
ESET-NOD32 a variant of Win32/Formbook.AL
TrendMicro-HouseCall Trojan.Win32.FORMBOOK.YXDHCZ
Avast Win32:Formbook-B [Trj]
Cynet Malicious (score: 100)
Kaspersky UDS:Trojan.Win32.Generic
BitDefender Gen:Variant.Razy.769934
NANO-Antivirus Virus.Win32.Gen.ccmw
SUPERAntiSpyware Trojan.Agent/Gen-Crypt
Tencent Win32.Trojan.Generic.Sgil
Emsisoft Gen:Variant.Razy.769934 (B)
VIPRE Gen:Variant.Razy.769934
TrendMicro Trojan.Win32.FORMBOOK.YXDHCZ
McAfee-GW-Edition BehavesLike.Win32.Generic.cc
Trapmine malicious.high.ml.score
Sophos Troj/Formbook-A
GData Win32.Trojan.PSE.10Z9ZNT
Avira TR/Crypt.ZPACK.Gen
Antiy-AVL GrayWare/Win32.Formbook.A
Arcabit Trojan.Razy.DBBF8E
ViRobot Trojan.Win.Z.Formbook.189440.Q
ZoneAlarm UDS:Trojan.Win32.Generic
Microsoft Trojan:Win32/FormBook.AFB!MTB
Google Detected
AhnLab-V3 Trojan/Win.Formbook.X2185
Acronis suspicious
VBA32 BScope.TrojanPSW.Banker
ALYac Gen:Variant.Razy.769934
MAX malware (ai score=83)
Malwarebytes Generic.Malware.AI.DDS
Panda Trj/CI.A
APEX Malicious
Rising Stealer.Formbook!1.C470 (CLASSIC)
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/GenKryptik.AYEB!tr
AVG Win32:Formbook-B [Trj]
Cybereason malicious.f0c51f
DeepInstinct MALICIOUS

How to remove Trojan:Win32/FormBook.AFB!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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