Categories: Trojan

Trojan:Win32/NSISInject.FB!MTB (file analysis)

The Trojan:Win32/NSISInject.FB!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/NSISInject.FB!MTB virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Behavioural detection: Executable code extraction – unpacking
  • At least one process apparently crashed during execution
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • Authenticode signature is invalid

How to determine Trojan:Win32/NSISInject.FB!MTB?


File Info:

name: 7BAC72765F59774AF369.mlwpath: /opt/CAPEv2/storage/binaries/41e4e99a7e018c42f87316a684fe32bbdfdbba1211e37c5ae2a888954b1b8404crc32: 491645C7md5: 7bac72765f59774af369b8097b7e498bsha1: 5697ff90f7be29f7572c9ece6734f83f29966fbasha256: 41e4e99a7e018c42f87316a684fe32bbdfdbba1211e37c5ae2a888954b1b8404sha512: 4cf3e6bc8a46518e1f65b13bc336a8b06f7b3a0e623e30ca23341d69dec070e0608a5c74d9c5a9dc29eaa80ad132b4599d9046ee2b9644dfb731030085bba713ssdeep: 1536:vbtbZUR/k9otTbwrvvszBxvAlLKIlVo9aQG5SSfsu0DsuROAHOnBs2u2vkyi9aZj:vpb0s9AkrGxvelu9doaIqbLxovrVmultype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1BBD35B0174D98030E2B7427B4568E6520A7EFD764E329E9F2BDC4D8D1AB84D0A736B73sha3_384: 2d3b95d162ff6a8089f12173f9f877eed3668d747facac0d9c28803a3b6a445c4f8e0c518d8f0635d046eae31751f10fep_bytes: e88a2e0000e939feffff558becff15a8timestamp: 2022-05-12 23:01:55

Version Info:

0: [No Data]

Trojan:Win32/NSISInject.FB!MTB also known as:

Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Inject.4!c
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.39667174
FireEye Trojan.GenericKD.39667174
CAT-QuickHeal Trojan.GenericPMF.S28091415
ALYac Trojan.GenericKD.39667174
Malwarebytes Trojan.Injector
Zillya Trojan.Injector.Win32.1536233
Sangfor Trojan.Win32.Injector.Vmek
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/NSISInject.dc72ac92
K7GW Trojan ( 005945061 )
K7AntiVirus Trojan ( 005945061 )
BitDefenderTheta Gen:NN.ZexaF.34582.iqW@aS9dxnf
VirIT Trojan.Win32.PSWStealer.EK
Cyren W32/Injector.AXL.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Injector.ERPY
TrendMicro-HouseCall Trojan.Win32.NSISINJECT.USASHEJ22
Paloalto generic.ml
Kaspersky VHO:Trojan.Win32.Convagent.gen
BitDefender Trojan.GenericKD.39667174
Avast Win32:InjectorX-gen [Trj]
Ad-Aware Trojan.GenericKD.39667174
Emsisoft Trojan.GenericKD.39667174 (B)
Comodo Malware@#1dess1i839mn8
VIPRE Trojan.GenericKD.39667174
TrendMicro Trojan.Win32.NSISINJECT.USASHEJ22
McAfee-GW-Edition BehavesLike.Win32.NetLoader.ch
Sophos Mal/Generic-S + Troj/Inject-HSG
Ikarus Trojan-Spy.Agent
Webroot W32.Injector.Gen
Avira TR/Injector.tnxui
Antiy-AVL Trojan/Generic.ASMalwS.51F4
Microsoft Trojan:Win32/NSISInject.FB!MTB
ZoneAlarm VHO:Trojan.Win32.Convagent.gen
GData Trojan.GenericKD.39667174
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win.FormBook.R492181
McAfee RDN/Generic.grp
MAX malware (ai score=84)
VBA32 Trojan.Wacatac
APEX Malicious
Rising Trojan.Generic@AI.96 (RDML:I9Aaa9+MxD+1+focjwz2Ug)
Yandex Trojan.Igent.bXZDPp.2
SentinelOne Static AI – Suspicious PE
Fortinet W32/Injector.EROK!tr
AVG Win32:InjectorX-gen [Trj]
Cybereason malicious.0f7be2
Panda Trj/GdSda.A

How to remove Trojan:Win32/NSISInject.FB!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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