Categories: Backdoor

Should I remove “Backdoor.MSIL.Quasar”?

The Backdoor.MSIL.Quasar 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 Backdoor.MSIL.Quasar virus can do?

  • Network activity detected but not expressed in API logs

How to determine Backdoor.MSIL.Quasar?


File Info:

crc32: AF5B9E2Cmd5: d6726a6d9741ba0f244e0d5282f8fccaname: file.exesha1: 474137f8c0865333ed57e7b1eb6ec8a624944227sha256: 4e7930058518f24a543687bc76bc7356f01b9d12b63afe3f7999f61b00d4bc3dsha512: 6f3374abcc0172c6052cd98b534b95446108f6e4374194d42d186d533cf69cb165832cbb2b67d4ac723df3fa89aaabf2f35509d55232845a88c4ec810a8cfff6ssdeep: 6144:2KOH3GKo9REmTeT88LLaXxa4wHiSRPXSftqywf7baM5LxgNoMmkttqFdzj:2Ke3Y9xoLLaXxvqvSfaCM5LWNykKntype: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0LegalCopyright: Assembly Version: 1.3.0.0InternalName: Client.exeFileVersion: 1.3.0.0ProductVersion: 1.3.0.0FileDescription: OriginalFilename: Client.exe

Backdoor.MSIL.Quasar also known as:

MicroWorld-eScan DeepScan:Generic.MSIL.PasswordStealerA.9DAC3A27
FireEye Generic.mg.d6726a6d9741ba0f
McAfee GenericRXDB-RU!D6726A6D9741
ALYac Backdoor.MSIL.Quasar.gen
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Spyware ( 004bf53c1 )
BitDefender DeepScan:Generic.MSIL.PasswordStealerA.9DAC3A27
K7GW Spyware ( 004bf53c1 )
Cybereason malicious.d9741b
Invincea heuristic
F-Prot W32/MSIL_Mintluks.A.gen!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Paloalto generic.ml
ClamAV Win.Malware.Generic-6623004-0
GData MSIL.Trojan-Spy.Keylogger.J
Kaspersky HEUR:Trojan.MSIL.Quasar.gen
Alibaba Trojan:Win32/Starter.ali2000005
Rising Backdoor.Quasar!1.B1DD (CLOUD)
Endgame malicious (high confidence)
Emsisoft DeepScan:Generic.MSIL.PasswordStealerA.9DAC3A27 (B)
F-Secure Heuristic.HEUR/AGEN.1045085
DrWeb BackDoor.Quasar.1
TrendMicro TSPY_TINCLEX.SM1
McAfee-GW-Edition BehavesLike.Win32.Generic.gh
Trapmine suspicious.low.ml.score
Sophos Troj/Subti-A
SentinelOne DFI – Malicious PE
Cyren W32/MSIL_Mintluks.A.gen!Eldorado
Avira HEUR/AGEN.1045085
MAX malware (ai score=81)
Antiy-AVL Trojan/MSIL.Quasar
Arcabit DeepScan:Generic.MSIL.PasswordStealerA.9DAC3A27
ZoneAlarm HEUR:Trojan.MSIL.Quasar.gen
Microsoft Backdoor:Win32/QuasarRAT.A
AhnLab-V3 Trojan/Win32.Inject.C1531898
Acronis suspicious
VBA32 TScope.Trojan.MSIL
Ad-Aware DeepScan:Generic.MSIL.PasswordStealerA.9DAC3A27
Malwarebytes Backdoor.Quasar
Panda Trj/GdSda.A
ESET-NOD32 a variant of MSIL/Spy.Agent.AES
TrendMicro-HouseCall TSPY_TINCLEX.SM1
Tencent Msil.Trojan.Quasar.Wrgc
Ikarus Backdoor.Win32.Xiclog
eGambit Trojan.Generic
Fortinet MSIL/Agent.AES!tr
BitDefenderTheta Gen:NN.ZemsilF.34104.Cm0@a0MpKJl
AVG MSIL:Rat-B [Trj]
Avast MSIL:Rat-B [Trj]
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Generic/Trojan.b28

How to remove Backdoor.MSIL.Quasar?

  • 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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