Malware

Hoax.BadJoke (file analysis)

Malware Removal

The Hoax.BadJoke 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 Hoax.BadJoke virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Creates RWX memory
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • CAPE extracted potentially suspicious content
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid

How to determine Hoax.BadJoke?



File Info:

name: BC07CF3F4273EC6E1598.mlw
path: /opt/CAPEv2/storage/binaries/500fe9a271faa02692f1247bdbee20efa98f4c41b8466347dabe0b8166ffe863
crc32: 4A8D92B4
md5: bc07cf3f4273ec6e159812e5ceb70904
sha1: b32c4a1dfff0096eb3fb92e823d715edddca0ce0
sha256: 500fe9a271faa02692f1247bdbee20efa98f4c41b8466347dabe0b8166ffe863
sha512: 93f4a98225349c485e4792d36e56621f9be86834b0385d67930ab10a2fe688c515970300cefc4968988021f273885db8e480ebf78ffd89bc33178bc67805d411
ssdeep: 196608:DuW39IjYpOPCqMvvfng2OM20giL+PtHfDCBLyC3Ozm1KuQ:7NIjyCCqMvg/0giqAkA
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T194D633095903C302D97AB3BD009E6612EF8E18497261B62E8F9EF4D35F1634671EEDE4
sha3_384: 3f5552efbac6c90ae91f86dbb8f37615265e7d429741671ce2c9769375eeaad801c555ec94c01016e5c3b2fdd614e897
ep_bytes: ff250020400000000000000000000000
timestamp: 2017-01-28 10:16:45


Version Info:

Translation: 0x0000 0x04b0
Comments: Tool to corrupt the Windows Registry
CompanyName: 
FileDescription: RegFuck
FileVersion: 1.0.0.0
InternalName: RegFuck.exe
LegalCopyright: Copyright ©  2017
LegalTrademarks: 
OriginalFilename: RegFuck.exe
ProductName: RegFuck
ProductVersion: 1.0.0.0
Assembly Version: 1.0.0.0

Hoax.BadJoke also known as:

LionicTrojan.Win32.RegKill.4!c
MicroWorld-eScanGen:Variant.Ursu.936160
FireEyeGen:Variant.Ursu.936160
ALYacGen:Variant.Ursu.936160
MalwarebytesHoax.BadJoke
VIPREGen:Variant.Ursu.936160
CrowdStrikewin/malicious_confidence_100% (W)
BitDefenderGen:Variant.Ursu.936160
K7GWTrojan ( 00546c601 )
K7AntiVirusTrojan ( 00546c601 )
ArcabitTrojan.Ursu.DE48E0
SymantecML.Attribute.HighConfidence
Elasticmalicious (high confidence)
ESET-NOD32MSIL/BadJoke.NI
APEXMalicious
KasperskyTrojan.Win32.RegKill.i
AlibabaTrojan:Win32/RegKill.4148ddc7
NANO-AntivirusRiskware.Win32.WinKill.fmpefm
RisingTrojan.Generic/MSIL@AI.100 (RDM.MSIL:1pEWlgpyaMdDfZ1eZA+A9g)
Ad-AwareGen:Variant.Ursu.936160
EmsisoftGen:Variant.Ursu.936160 (B)
ComodoMalware@#10jt0iygot71b
DrWebTool.WinKill.1
ZillyaTool.NI.Win32.1
TrendMicroTROJ_GEN.R002C0DDJ22
McAfee-GW-EditionArtemis!Trojan
Trapminesuspicious.low.ml.score
SophosMal/DotNet-L
IkarusTrojan.MSIL.BadJoke
JiangminTrojan.RegKill.a
WebrootW32.Trojan.Gen
AviraTR/BadJoke.cvqpd
Antiy-AVLTrojan/Generic.ASMalwS.5EDF
KingsoftWin32.Troj.RegKill.i.(kcloud)
MicrosoftTrojan:Win32/Occamy.C
ZoneAlarmTrojan.Win32.RegKill.i
GDataGen:Variant.Ursu.936160
CynetMalicious (score: 99)
McAfeeArtemis!BC07CF3F4273
CylanceUnsafe
PandaTrj/GdSda.A
TrendMicro-HouseCallTROJ_GEN.R002C0DDJ22
TencentWin32.Trojan.Regkill.Pezf
YandexTrojan.Igent.bU6xZ9.17
SentinelOneStatic AI – Suspicious PE
MaxSecureTrojan.Malware.74531599.susgen
BitDefenderThetaGen:NN.ZemsilF.34786.@p0@aOqIVRk
Cybereasonmalicious.f4273e

How to remove Hoax.BadJoke?

Hoax.BadJoke 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.

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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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