MSIL/ExtenBro.AF malicious file

The MSIL/ExtenBro.AF 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 MSIL/ExtenBro.AF virus can do?

Behavioural detection: Executable code extraction – unpacking
CAPE extracted potentially suspicious content
The binary contains an unknown PE section name indicative of packing
Authenticode signature is invalid

How to determine MSIL/ExtenBro.AF?


File Info:
name: CA7044E61C786D453776.mlw
path: /opt/CAPEv2/storage/binaries/9dd8ac3218761cdc964676d34cb0c54044d4de1356bdd19ae7aef249b6727e5b
crc32: DAAC6F6A
md5: ca7044e61c786d45377655304fb70f7c
sha1: d0fd980ef65a53a40e791471d62fe7a9fe53060a
sha256: 9dd8ac3218761cdc964676d34cb0c54044d4de1356bdd19ae7aef249b6727e5b
sha512: 44f0cc8d19b43e7f7b03f9ca4a936a78ea6e681c33b24b16e78e910f58abb52b10642464c094d6fdfe5c784f38885bf45542bf6099f12a7e1f4642a13d5160fe
ssdeep: 384:NabAfteRMFdQqzQz+yebITZoxTJpzLk245Gdx3X3YkFp5UxQzePWrjx:NabAfsqF+qkz+yebCoxTfnUSPUm1
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T13292FA25B7D2C1B2CAA90B710BE3B6621771DD42951BD7BF5890B05A5FB33408E236B0
sha3_384: bd2fc6511121978f01a184823bccc2c3274fa036dd0f6f3a9c893c9c8b1722dcaf2a5d89302fd80acd34a9db7180a263
ep_bytes: ff250020400000000000000000000000
timestamp: 2014-11-28 17:41:31

Version Info:
Translation: 0x0000 0x04b0
CompanyName: Microsoft
FileDescription: Campbell
FileVersion: 1.0.0.0
InternalName: Campbell.exe
LegalCopyright: Copyright © Microsoft 2014
OriginalFilename: Campbell.exe
ProductName: Campbell
ProductVersion: 1.0.0.0
Assembly Version: 1.0.0.0

MSIL/ExtenBro.AF also known as:

Bkav	W32.AIDetectMalware.CS
Lionic	Trojan.Win32.ExtenBro.4!c
Elastic	malicious (high confidence)
MicroWorld-eScan	Gen:Variant.MSILPerseus.85090
FireEye	Generic.mg.ca7044e61c786d45
Skyhigh	GenericRXSU-YU!CA7044E61C78
ALYac	Gen:Variant.MSILPerseus.85090
Cylance	unsafe
Sangfor	Trojan.Win32.Extenbro.Vsq7
K7AntiVirus	Trojan ( 004b182a1 )
Alibaba	Trojan:MSIL/ExtenBro.0fcbc713
K7GW	Trojan ( 004b182a1 )
BitDefenderTheta	Gen:NN.ZemsilF.36744.bq0@aqHEfxe
VirIT	Trojan.Win32.MSIL_Heur.A
Symantec	ML.Attribute.HighConfidence
ESET-NOD32	a variant of MSIL/ExtenBro.AF
Cynet	Malicious (score: 100)
APEX	Malicious
BitDefender	Gen:Variant.MSILPerseus.85090
NANO-Antivirus	Trojan.Win32.ExtenBro.ffscls
Tencent	Win32.Trojan.Agen.Snkl
Emsisoft	Gen:Variant.MSILPerseus.85090 (B)
F-Secure	Trojan:W32/Kilim.AG
VIPRE	Gen:Variant.MSILPerseus.85090
TrendMicro	TROJ_GEN.R002C0PAF24
Sophos	Mal/Generic-S
Ikarus	Trojan.MSIL.ExtenBro
Avira	HEUR/AGEN.1308180
Microsoft	Trojan:Win32/Wacatac.B!ml
Xcitium	Malware@#2hk8337r09tub
Arcabit	Trojan.MSILPerseus.D14C62
GData	Gen:Variant.MSILPerseus.85090
Google	Detected
AhnLab-V3	Trojan/Win32.Agent.C2622374
McAfee	GenericRXSU-YU!CA7044E61C78
MAX	malware (ai score=81)
Malwarebytes	Generic.Malware/Suspicious
TrendMicro-HouseCall	TROJ_GEN.R002C0PAF24
Rising	Trojan.ExtenBro!8.51 (CLOUD)
Yandex	Trojan.ExtenBro!Yo89jIc87Lw
SentinelOne	Static AI – Malicious PE
MaxSecure	Trojan.Malware.300983.susgen
Fortinet	MSIL/ExtenBro.AF!tr
DeepInstinct	MALICIOUS
CrowdStrike	win/malicious_confidence_100% (D)

How to remove MSIL/ExtenBro.AF?

MSIL/ExtenBro.AF removal tool

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.

About the author

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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