Worm

Win32.Worm.Brontok.BI (file analysis)

Malware Removal

The Win32.Worm.Brontok.BI 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.

GridinSoft Anti-Malware

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.
6-day free trial available.

What Win32.Worm.Brontok.BI virus can do?

  • Executable code extraction
  • Creates RWX memory
  • The binary likely contains encrypted or compressed data.
  • Checks for the presence of known windows from debuggers and forensic tools
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • Network activity detected but not expressed in API logs
  • Anomalous binary characteristics

Related domains:

z.whorecord.xyz
a.tomx.xyz

How to determine Win32.Worm.Brontok.BI?


File Info:

crc32: 316E9B11
md5: a9bca0889a464119b345db7b0ecd79a8
name: A9BCA0889A464119B345DB7B0ECD79A8.mlw
sha1: 8a49203fa94921fd6eb80710756a1ab6dd917a22
sha256: 60fe4a1f0ed577bfa8d10195a3d1123b0a7ab551d3579686ee6ac6bc18282fe5
sha512: bd0574a6dc8f327f539a7e4766135ff12f53110c14b0ef593c8b902c03a865963c410ed1f33640656aa45ee17606688170afcc759c9c56e6407d5f68e5eeee25
ssdeep: 384:VmpUto8E6qhIA8ZfiSM+3/marB4djzuf4uFfTlCTZ94GgR01eEe/tfF1Xfvgmra:wpUt1E/8mS+amkLFRccny45nHguUL
type: PE32 executable (GUI) Intel 80386, for MS Windows, PECompact2 compressed

Version Info:

0: [No Data]

Win32.Worm.Brontok.BI also known as:

BkavW32.MoonLightCP.Worm
TotalDefenseWin32/Kumoo.B
MicroWorld-eScanWin32.Worm.Brontok.BI
nProtectWorm/W32.Moonlight.32768
CMCWorm.Win32.VB!O
CAT-QuickHealTrojanAPT.LecnaCShip.MUE.Z4
ALYacWin32.Worm.Brontok.BI
CylanceUnsafe
CrowdStrikemalicious_confidence_100% (D)
K7GWTrojan ( 0000fb5b1 )
K7AntiVirusTrojan ( 0000fb5b1 )
TrendMicroWORM_MOONLIGHT.B
BaiduWin32.Worm.VB.a
CyrenW32/Worm.KYPY-0738
SymantecW32.Rontokbro@mm
ESET-NOD32Win32/NoonLight.B
ZonerI-Worm.NoonLight.B
TheHackerW32/VB.cz
AvastWin32:VB-BQD [Wrm]
ClamAVWin.Worm.VB-556
KasperskyWorm.Win32.VB.cz
BitDefenderWin32.Worm.Brontok.BI
NANO-AntivirusTrojan.Win32.VB.crsvto
ViRobotWorm.Win32.VB.32768
SUPERAntiSpywareTrojan.Agent/Gen-Pakon
TencentWorm.Win32.VB.tk
Ad-AwareWin32.Worm.Brontok.BI
SophosW32/Bobandy-D
ComodoWorm.Win32.NoonLight.B
F-SecureWin32.Worm.Brontok.BI
DrWebTrojan.MulDrop.59624
VIPRETrojan.Win32.Generic!BT
Invinceaheuristic
McAfee-GW-EditionBehavesLike.Win32.MoonLight.nc
EmsisoftWin32.Worm.Brontok.BI (B)
SentinelOnestatic engine – malicious
F-ProtW32/Worm.AJ
Endgamemalicious (high confidence)
AviraWORM/VB.CZ.14.A
Antiy-AVLTrojan/Generic.ASVCS3S.1F5
MicrosoftTrojan:Win32/Dorv.A
JiangminI-Worm/VB.acj
ArcabitWin32.Worm.Brontok.BI
AegisLabW32.W.VB.tne1
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataWin32.Worm.Brontok.BI
AhnLab-V3HEUR/Fakon.mwf
McAfeeW32/MoonLight.worm
AVwareTrojan.Win32.Generic!BT
MAXmalware (ai score=89)
VBA32Worm.VB
MalwarebytesWorm.AutoRun
PandaW32/Moonlight.A.worm
TrendMicro-HouseCallWORM_MOONLIGHT.B
YandexI-Worm.Lightmoon.J
IkarusTrojan.Win32.Agent
FortinetW32/Virtob.NC
AVGWin32:VB-BQD [Wrm]
Qihoo-360Worm.Win32.Brontok.B

How to remove Win32.Worm.Brontok.BI?

Win32.Worm.Brontok.BI 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.

Leave a Comment