Malware

Win32.Virlock.Gen.5 (B) removal guide

Malware Removal

The Win32.Virlock.Gen.5 (B) 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 Win32.Virlock.Gen.5 (B) virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Attempts to connect to a dead IP:Port (3 unique times)
  • Executed a command line with /C or /R argument to terminate command shell on completion which can be used to hide execution
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Dynamic (imported) function loading detected
  • Enumerates running processes
  • Expresses interest in specific running processes
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • Reads data out of its own binary image
  • Manipulates data from or to the Recycle Bin
  • A process created a hidden window
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • A scripting utility was executed
  • Uses Windows utilities for basic functionality
  • Uses Windows utilities for basic functionality
  • A process attempted to delay the analysis task by a long amount of time.
  • Created a process from a suspicious location
  • Installs itself for autorun at Windows startup
  • Installs itself for autorun at Windows startup
  • CAPE detected the VirLock malware family
  • Anomalous binary characteristics
  • Attempts to modify Explorer settings to prevent file extensions from being displayed
  • Attempts to modify Explorer settings to prevent hidden files from being displayed
  • Uses suspicious command line tools or Windows utilities

How to determine Win32.Virlock.Gen.5 (B)?


File Info:

name: 079BD34C3B8B78DD19B1.mlw
path: /opt/CAPEv2/storage/binaries/f91590d1e8b91409f15c2bf71d9558f07999493d320439e333a8dbafa77bd70b
crc32: FF4AE8BD
md5: 079bd34c3b8b78dd19b1b9d6be59fd50
sha1: 4386bf6a70d55d9f94672da73092f8416d523371
sha256: f91590d1e8b91409f15c2bf71d9558f07999493d320439e333a8dbafa77bd70b
sha512: 749013f09442258120d3e5adc8c500eb06a4ad0eabb523cdafd2665aaf519e3161caa64a67437006bc852e79a7a400b2e3f80cf5ef573914d1aba0b0326d387e
ssdeep: 24576:iq777777X777777HNapIuVcuAKu6d5q3lcP1jqobVXOH9YB5DP4kVs:igNmZVcuOU52u1jqg+H6k
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1568589E1E17FE6A4749ED41AA27223846EE804E43B2FF8E31321E97C56858DB70DD570
sha3_384: 57ac18488baca6fb32ed6bce019d291a6d9cc5b59a9ebf76783ddc290e7927a434973e636d5754fb29e2a57d7d327fe9
ep_bytes: c1e9010bc1c1e710c1c61b0bc103f08b
timestamp: 2018-12-26 09:34:19

Version Info:

0: [No Data]

Win32.Virlock.Gen.5 (B) also known as:

BkavW32.AIDetect.malware1
LionicVirus.Win32.PolyRansom.n!c
tehtrisGeneric.Malware
MicroWorld-eScanWin32.Virlock.Gen.5
FireEyeGeneric.mg.079bd34c3b8b78dd
CAT-QuickHealRansom.PolyRansom.B2
McAfeeW32/VirRansom
CylanceUnsafe
SangforSuspicious.Win32.Save.a
K7AntiVirusVirus ( 0040f99f1 )
AlibabaTrojan:Win32/Starter.ali2000005
K7GWVirus ( 0040f99f1 )
Cybereasonmalicious.c3b8b7
BitDefenderThetaAI:FileInfector.47FA551513
VirITWin32.CryptorGen.A
CyrenW32/A-eb557c81!Eldorado
Elasticmalicious (high confidence)
ESET-NOD32a variant of Win32/Virlock.C
BaiduWin32.Virus.Virlock.a
TrendMicro-HouseCallPE_VIRLOCK.E
Paloaltogeneric.ml
ClamAVBC.Win.Virus.Ransom-9157.B
KasperskyVirus.Win32.PolyRansom.a
BitDefenderWin32.Virlock.Gen.5
NANO-AntivirusTrojan.Win32.PolyRansom.exypia
SUPERAntiSpywareTrojan.Agent/Gen-Crypt
AvastWin32:VirLock [Inf]
TencentVirus.Win32.Polyransom.a
Ad-AwareWin32.Virlock.Gen.5
SophosMal/Generic-R + W32/VirRnsm-A
ComodoPacked.Win32.Graybird.B@5hgpd5
DrWebWin32.VirLock.4
ZillyaVirus.PolyRansom.Win32.2
TrendMicroPE_VIRLOCK.E
McAfee-GW-EditionBehavesLike.Win32.VirRansom.tc
EmsisoftWin32.Virlock.Gen.5 (B)
APEXMalicious
GDataWin32.Virlock.Gen.5
JiangminWin32/Polyransom.a
AviraTR/Crypt.XPACK.Gen7
MAXmalware (ai score=83)
ArcabitWin32.Virlock.Gen.5
MicrosoftTrojan:Win32/NabucurObfs
CynetMalicious (score: 100)
AhnLab-V3Win32/Nabucur.B
VBA32Virus.VirLock
ALYacWin32.Virlock.Gen.5
TACHYONVirus/W32.VirRansom.C
MalwarebytesBladabindi.Backdoor.Njrat.DDS
IkarusVirus.Win32.Nabucur
RisingVirus.VirLock!1.A08A (CLASSIC)
SentinelOneStatic AI – Malicious PE
MaxSecureVirus.PolyRansom.a
FortinetW32/Virlock.K
AVGWin32:VirLock [Inf]
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Win32.Virlock.Gen.5 (B)?

Win32.Virlock.Gen.5 (B) 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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