Malware

About “MSIL/Injector.BCU” infection

Malware Removal

The MSIL/Injector.BCU 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 MSIL/Injector.BCU virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Attempts to connect to a dead IP:Port (3 unique times)
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Drops a binary and executes it
  • Performs some HTTP requests
  • Creates an autorun.inf file
  • Executed a process and injected code into it, probably while unpacking
  • Sniffs keystrokes
  • A process attempted to delay the analysis task by a long amount of time.
  • A process was set to shut the system down when terminated
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • Attempts to modify proxy settings
  • Creates a copy of itself

Related domains:

z.whorecord.xyz
a.tomx.xyz
gruby.sytes.net
dl.dropbox.com
ocsp.digicert.com

How to determine MSIL/Injector.BCU?


File Info:

crc32: 897FB85F
md5: a3af603962fdad31ce64958fb2a591a7
name: A3AF603962FDAD31CE64958FB2A591A7.mlw
sha1: 6d3134de3056ed57946cf7ae24490939e7955015
sha256: 41590ab5e724f281c37773dc3a0794b830f75ec6bf001084f610c1094abc7d47
sha512: 45b2819043b058884e480eaccede5a1469950ac57eac2119fd918d48c290c70ccca858349f6e566ff3b2309e5ce7e2591fb1bac9d02047ca844f08b18508c5c0
ssdeep: 6144:XirtPZxw4eOZzbewa719QIuq9DcPU4hY:y/eSzSV7DQIhcPU46
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 YZjsnRgzU 2011
Assembly Version: 4.9.10.8
InternalName: putty.exe
FileVersion: 7.2.11.7
CompanyName: Plik Obrazu
ProductName: .src File
ProductVersion: 1.0.0.0
FileDescription: Galeria Obrazow Windows
OriginalFilename: putty.exe

MSIL/Injector.BCU also known as:

K7AntiVirusTrojan ( 004e3b751 )
Elasticmalicious (high confidence)
DrWebBackDoor.Siggen.51508
CynetMalicious (score: 100)
ALYacGen:Heur.MSIL.Krypt.11
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaTrojan:MSIL/Injector.f9a53799
K7GWTrojan ( 004e3b751 )
Cybereasonmalicious.962fda
CyrenW32/MSIL_Kryptik.CPN.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of MSIL/Injector.BCU
APEXMalicious
AvastMSIL:Crypt-MI [Trj]
KasperskyHEUR:Trojan-Ransom.Win32.Generic
BitDefenderGen:Heur.MSIL.Krypt.11
NANO-AntivirusTrojan.Win32.DarkKomet.didybn
MicroWorld-eScanGen:Heur.MSIL.Krypt.11
TencentWin32.Trojan.Generic.Lmkt
Ad-AwareGen:Heur.MSIL.Krypt.11
SophosMal/Generic-S
ComodoBackdoor.Win32.Delf.~DP@1mio9l
BitDefenderThetaGen:NN.ZemsilF.34790.um0@a0M0jjb
VIPRETrojan.Win32.Generic.pak!cobra
McAfee-GW-EditionArtemis!Trojan
FireEyeGeneric.mg.a3af603962fdad31
EmsisoftGen:Heur.MSIL.Krypt.11 (B)
SentinelOneStatic AI – Suspicious PE
JiangminTrojan/Agent.hegh
AviraTR/Dropper.MSIL.Gen
eGambitUnsafe.AI_Score_99%
KingsoftWin32.Heur.KVM007.a.(kcloud)
MicrosoftTrojan:Win32/Tiggre!rfn
ZoneAlarmHEUR:Trojan-Ransom.Win32.Generic
GDataGen:Heur.MSIL.Krypt.11
AhnLab-V3Trojan/Win32.Blocker.R53909
McAfeeArtemis!A3AF603962FD
MAXmalware (ai score=100)
VBA32Hoax.Blocker
MalwarebytesPolyRansom.Virus.FileInfector.DDS
PandaTrj/Dtcontx.B
YandexTrojan.Blocker!I2CKPuZhMu0
IkarusBackdoor.Win32.DarkKomet
FortinetW32/Blocker.AUGX!tr
AVGMSIL:Crypt-MI [Trj]
Paloaltogeneric.ml
Qihoo-360Win32/TrojanDropper.Generic.HwMAEpsA

How to remove MSIL/Injector.BCU?

MSIL/Injector.BCU 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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