Virus

Should I remove “Virus:Win32/Quervar.A”?

Malware Removal

The Virus:Win32/Quervar.A 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 Virus:Win32/Quervar.A virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • A file was accessed within the Public folder.
  • Sample contains Overlay data
  • Reads data out of its own binary image
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Deletes executed files from disk

How to determine Virus:Win32/Quervar.A?


File Info:

name: 27C81217162C97236E0D.mlw
path: /opt/CAPEv2/storage/binaries/dd88e2557bdec1ad4ebab094bd3edc933b4ad9b2e5d38f3048080e49538314a8
crc32: 3B120140
md5: 27c81217162c97236e0d49b194f5e8df
sha1: 469450cb604fcd7981c98473c255d4855d515860
sha256: dd88e2557bdec1ad4ebab094bd3edc933b4ad9b2e5d38f3048080e49538314a8
sha512: f99c1f39bb2b0ab4df84819810e613b436d29a19a7aac757d616d93fffdec17f304347b4a833b3c30f67951e999bd6c22aaf11a082fd82f0349ee802f91a07d4
ssdeep: 3072:d1jjutWaL2GoSS0BSXBKBl6rySXBKBlyxn/qi7Tkgg43JQwc:dhj2L2PK0Biiy0BiYx7T3g438
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T197F3AE83F3C588B7E8170A744C2BAA48FA3EBD253D05251636E97E7B4C77381445A3A7
sha3_384: 707d9cdc850dd9cd80443ee2fb82df1341b56661cbd72e80c2fdecad8c89b2e6f9e48bc5bb253ae430a9ac74c425a194
ep_bytes: 558bec83c4c4b82cf44000e8545cffff
timestamp: 1992-06-19 22:22:17

Version Info:

CompanyName:
FileDescription: Resource viewer, decompiler & recompiler.
FileVersion: 3.4.0.79
InternalName: ResHack
LegalCopyright: (c) Angus Johnson 1999-2002
LegalTrademarks:
OriginalFilename: ResHack
ProductName:
ProductVersion: 3.0.0.0
Comments: Freeware, but see help file for conditions.
Aditional Notes: Not for distribution without the authors permission
Translation: 0x0c09 0x04e4

Virus:Win32/Quervar.A also known as:

BkavW32.AIDetectMalware
LionicTrojan.Win32.Dorifel.b!c
Elasticmalicious (high confidence)
MicroWorld-eScanWin32.Davion.A
ClamAVWin.Trojan.Agent-419176
FireEyeGeneric.mg.27c81217162c9723
CAT-QuickHealW32.Quervar.A6
SkyhighBehavesLike.Win32.Dropper.ch
McAfeeW32/XDocCrypt
MalwarebytesGeneric.Malware.AI.DDS
VIPREWin32.Davion.A
SangforTrojan.Win32.Save.a
K7AntiVirusEmailWorm ( 00541d5f1 )
AlibabaVirus:Win32/Quervar.59ea56ef
K7GWEmailWorm ( 00541d5f1 )
Cybereasonmalicious.b604fc
BitDefenderThetaGen:NN.ZelphiCO.36744.ky3@a8DvOjhi
SymantecTrojan.Exprez.B
ESET-NOD32Win32/Quervar.A
APEXMalicious
CynetMalicious (score: 100)
KasperskyTrojan-Dropper.Win32.Dorifel.cgt
BitDefenderWin32.Davion.A
NANO-AntivirusTrojan.Win32.Dorifel.rpuiw
AvastWin32:Evo-gen [Trj]
TencentVirus.Win32.Quervar.a
SophosW32/Quervar-C
BaiduWin32.Virus.Quervar.d
F-SecureTrojan.TR/Crypt.XPACK.Gen
DrWebTrojan.PWS.Gamania.36401
ZillyaDropper.Dorifel.Win32.20717
TrendMicroPE_QUERVAR.A
Trapminemalicious.high.ml.score
EmsisoftWin32.Davion.A (B)
IkarusTrojan-Dropper.Win32.Dorifel
GDataWin32.Davion.A
JiangminWorm/Generic.wps
WebrootW32.Trojan.Gen
VaristW32/Quervar.A.gen!Eldorado
AviraTR/Crypt.XPACK.Gen
Antiy-AVLTrojan[Dropper]/Win32.Dorifel
KingsoftWin32.HeurC.KVM007.a
XcitiumTrojWare.Win32.Dorifel.a@4q46bp
ArcabitWin32.Davion.A
ZoneAlarmTrojan-Dropper.Win32.Dorifel.cgt
MicrosoftVirus:Win32/Quervar.A
GoogleDetected
AhnLab-V3Dropper/Win32.Dorifel.R49471
ALYacWin32.Davion.A
MAXmalware (ai score=100)
VBA32BScope.TrojanDropper.Dorifel
Cylanceunsafe
PandaW32/CryptD.A
TrendMicro-HouseCallPE_QUERVAR.A
RisingMalware.Undefined!8.C (TFE:3:0Kqb2hhA7x)
YandexTrojan.GenAsa!vSvIa0VInGk
SentinelOneStatic AI – Suspicious PE
MaxSecureVirus.W32.Dorifel.cgt
FortinetW32/Dorifel.AOG!tr
AVGWin32:Evo-gen [Trj]
DeepInstinctMALICIOUS
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Virus:Win32/Quervar.A?

Virus:Win32/Quervar.A 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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