MSIL/Spy.Agent.BYZ removal instruction

The MSIL/Spy.Agent.BYZ 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.

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What MSIL/Spy.Agent.BYZ virus can do?

Dynamic (imported) function loading detected
Authenticode signature is invalid
Unusual version info supplied for binary

How to determine MSIL/Spy.Agent.BYZ?


File Info:
name: 99C0922D81DE857486B1.mlw
path: /opt/CAPEv2/storage/binaries/1aa9ca0d0d25ed2b26a35b9e612cc7fa2a0903db3439b8f6fcba687bc2e9881d
crc32: DC0B92FE
md5: 99c0922d81de857486b1ddfb48c136ea
sha1: 2ec1cf01c28b1c456f11327eaf79d3281d6665c8
sha256: 1aa9ca0d0d25ed2b26a35b9e612cc7fa2a0903db3439b8f6fcba687bc2e9881d
sha512: caa35e35ae1597cd5e23253808a5194cb3be1975a91918f7fa0bf47699190e5a329cb385b89820cea01ff90d23ca71ad19c633edd3c3759cbf2a93740721c9e4
ssdeep: 768:+Q2Uu6v8HQceL2sUDWMkn9Tr+JiKB2w3RlVBufAKbS/ln5IyYpamDsobjaSO:uUco2sBTWiVKljufqln5IUmDsoXI
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T103533FC174A48333E8AA8975E0B74A400BF15C07DBB7DE4BEDF6309459B2750AB0796B
sha3_384: 0f73fc11a39a0f746b2ecdf6634ef3449bcf75b431b9db0c1064f738a740fb5b0a864db96a08b94f2ca53f9f9b883e82
ep_bytes: ff250020400000000000000000000000
timestamp: 2019-04-04 03:15:32

Version Info:
Translation: 0x0000 0x04b0
Comments: Windows ana bilgisayar işlemi (Rundll32)
CompanyName: 
FileDescription: Windows ana bilgisayar işlemi (Rundll32)
FileVersion: 10.0.17134.1
InternalName: rundll32.exe
LegalCopyright: © Microsoft Corporation. Tüm hakları saklıdır.
LegalTrademarks: 
OriginalFilename: rundll32.exe
ProductName: Microsoft® Windows® İşletim Sistemi
ProductVersion: 10.0.17134.1
Assembly Version: 10.0.17134.1

MSIL/Spy.Agent.BYZ also known as:

MicroWorld-eScan	Gen:Heur.MSIL.Krypt.!cdmip!.2
ALYac	Gen:Heur.MSIL.Krypt.!cdmip!.2
Cylance	Unsafe
K7AntiVirus	Spyware ( 0058b0321 )
Alibaba	Trojan:MSIL/BadJoke.d5d4e395
K7GW	Spyware ( 0058b0321 )
Cybereason	malicious.d81de8
BitDefenderTheta	Gen:NN.ZemsilF.34294.dm0@aGfbEWf
Symantec	ML.Attribute.HighConfidence
ESET-NOD32	a variant of MSIL/Spy.Agent.BYZ
TrendMicro-HouseCall	TROJ_GEN.R002H0CKR21
Kaspersky	HEUR:Trojan-Spy.MSIL.KeyLogger.gen
BitDefender	Gen:Heur.MSIL.Krypt.!cdmip!.2
Avast	Win32:Trojan-gen
Tencent	Msil.Trojan.Msil.Hwmi
Ad-Aware	Gen:Heur.MSIL.Krypt.!cdmip!.2
Emsisoft	Gen:Heur.MSIL.Krypt.!cdmip!.2 (B)
F-Secure	Heuristic.HEUR/AGEN.1101167
McAfee-GW-Edition	Artemis!Trojan
FireEye	Gen:Heur.MSIL.Krypt.!cdmip!.2
Sophos	Mal/Generic-S
Ikarus	Trojan.MSIL.BadJoke
GData	Gen:Heur.MSIL.Krypt.!cdmip!.2
Avira	HEUR/AGEN.1101167
MAX	malware (ai score=88)
Gridinsoft	Ransom.Win32.Wacatac.sa
Arcabit	Trojan.MSIL.Krypt.!cdmip!.2
APEX	Malicious
Microsoft	Trojan:Win32/Wacatac.B!ml
Cynet	Malicious (score: 99)
McAfee	Artemis!99C0922D81DE
Yandex	TrojanSpy.Agent!gFOLb7SbqpM
SentinelOne	Static AI – Malicious PE
Fortinet	MSIL/Agent.BYZ!tr.spy
AVG	Win32:Trojan-gen
Panda	Trj/GdSda.A
CrowdStrike	win/malicious_confidence_60% (W)
MaxSecure	Trojan.Malware.300983.susgen

How to remove MSIL/Spy.Agent.BYZ?

MSIL/Spy.Agent.BYZ 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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