Malware

What is “Win32/Bifrose.NEL”?

Malware Removal

The Win32/Bifrose.NEL 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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Gridinsoft Anti-Malware

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 Win32/Bifrose.NEL virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Creates RWX memory
  • Expresses interest in specific running processes
  • Reads data out of its own binary image
  • The binary likely contains encrypted or compressed data.
  • Executed a process and injected code into it, probably while unpacking
  • Installs itself for autorun at Windows startup
  • Creates a copy of itself
  • Anomalous binary characteristics

How to determine Win32/Bifrose.NEL?


File Info:

crc32: 1D8D2990
md5: 6021e09784d4b8ca5450fe6010c6e543
name: 6021E09784D4B8CA5450FE6010C6E543.mlw
sha1: 381d3e29e265034e052451691a2990d8501dfa27
sha256: 3f67801d69dfd76bf2ecf24de6f0047e94350a1b8c47783702417e3555bac40f
sha512: cdf7c7c8b40ffd9cf38d94cd26263d340002210bde1f43c894c9185decaa9f7224325f4911502460fc7c5b5f5b9aa745c50f22e493d7015405edea1641785725
ssdeep: 768:Z+h7TzTBziifTeiZSVWihwEknh0L7OTLeNfQflCHCMhEIV9sQwNQwuLkPTFz7wa3:kZ/nEkh8OTKNRHCML7iQHLkbFzW7A
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Bifrose.NEL also known as:

BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.GenericKD.40578665
FireEyeGeneric.mg.6021e09784d4b8ca
CAT-QuickHealBackdoor.Bifrose.AE
Qihoo-360Win32/Backdoor.0ab
McAfeeBackDoor-CEP.gen.g
CylanceUnsafe
VIPREBackdoor.Win32.Bifrose.ae (v)
SangforTrojan.Win32.Save.a
K7AntiVirusBackdoor ( 0040f49a1 )
BitDefenderTrojan.GenericKD.40578665
K7GWBackdoor ( 0040f49a1 )
Cybereasonmalicious.784d4b
BaiduWin32.Backdoor.Bifrose.a
CyrenW32/Backdoor.XKFY-2198
SymantecBackdoor.Trojan
TotalDefenseWin32/Backdrop.D
APEXMalicious
AvastWin32:BackDoor-ZR [Trj]
ClamAVWin.Trojan.Bifrose-28231
KasperskyBackdoor.Win32.Bifrose.fxv
AlibabaBackdoor:Win32/Bifrose.db9d49a8
NANO-AntivirusTrojan.Win32.Bifrose.enscfe
ViRobotBackdoor.Win32.A.Bifrose.32637.KZ
RisingTrojan.Win32.Midgare.hhn (CLASSIC)
Ad-AwareTrojan.GenericKD.40578665
EmsisoftTrojan.GenericKD.40578665 (B)
ComodoBackdoor.Win32.Bifrost.~Q@7opw
F-SecureBackdoor:W32/Bifrose.gen!E
DrWebTrojan.Inject2.26734
ZillyaVirus.Bitforse.Win32.1
TrendMicroBKDR_BIFROSE.SMA
McAfee-GW-EditionBehavesLike.Win32.Generic.qc
SophosMal/Generic-R + Mal/Bifrose-X
IkarusBackdoor.Win32.Bifrose
JiangminBackdoor/Bifrose.fzf
WebrootW32.Trojan.Bifrose
AviraBDS/Bifrose.aec
MAXmalware (ai score=100)
Antiy-AVLTrojan/Win32.Bifrose.gic
MicrosoftBackdoor:Win32/Bifrose.AE
GridinsoftTrojan.Win32.Downloader.oa!s1
ArcabitTrojan.Generic.D26B2E69
SUPERAntiSpywareTrojan.Agent/Gen-FraudAlert
ZoneAlarmBackdoor.Win32.Bifrose.fxv
GDataTrojan.GenericKD.40578665
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/Bifrose.Gen
Acronissuspicious
VBA32SScope.Trojan.Buzus.ak
ALYacTrojan.GenericKD.40578665
TACHYONBackdoor/W32.Bifrose.57953
MalwarebytesGeneric.Trojan.Dropper.DDS
PandaBck/Bifrose.BFX
ZonerTrojan.Win32.36495
ESET-NOD32Win32/Bifrose.NEL
TrendMicro-HouseCallBKDR_BIFROSE.SMA
TencentTrojan.Win32.Refroso.dejg
YandexTrojan.GenAsa!4E42FGF2k2Y
SentinelOneStatic AI – Malicious PE
eGambitUnsafe.AI_Score_99%
FortinetW32/Bifrose.NTA2!tr
BitDefenderThetaAI:Packer.EC6D84F31D
AVGWin32:BackDoor-ZR [Trj]
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
MaxSecureBackdoor.W32.Refroso.djjg

How to remove Win32/Bifrose.NEL?

Win32/Bifrose.NEL 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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