Backdoor

Backdoor:Win32/PcClient removal tips

Malware Removal

The Backdoor:Win32/PcClient 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.
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What Backdoor:Win32/PcClient virus can do?

  • Executable code extraction
  • At least one process apparently crashed during execution
  • Attempts to connect to a dead IP:Port (1 unique times)
  • Presents an Authenticode digital signature
  • Creates RWX memory
  • Drops a binary and executes it
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • Installs itself for autorun at Windows startup
  • Checks the CPU name from registry, possibly for anti-virtualization
  • Checks the system manufacturer, likely for anti-virtualization
  • Creates a copy of itself

Related domains:

d.nxxxn.ga
r.pengyou.com

How to determine Backdoor:Win32/PcClient?


File Info:

crc32: 50EB63C7
md5: ca3d4f927b1fdc755f153585687c3775
name: CA3D4F927B1FDC755F153585687C3775.mlw
sha1: a9b9c0a61253da2866498a41aadf8d9e34f7792c
sha256: 514131cbda388b27754e54d9eb7d91c9970488ee0b0d27e5532f38b1f60a8c8f
sha512: f40226590d581c338025d64f6eb147ece3b756928bfdde50c8dd63f1bd814fe380b5693edf667af09e37adbd7bf43403b9353f3aa02187e972560f3cb908a506
ssdeep: 6144:vv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:v4VOiF1WD7kE1dTYOi8V5u23zmWFy4
type: MS-DOS executable, MZ for MS-DOS

Version Info:

LegalCopyright: (C) 360.cn All Rights Reserved.
InternalName: LSPFix
FileVersion: 7, 1, 3, 1057
CompanyName: 360.cn
ProductName: 360x5b89x5168x536bx58eb
ProductVersion: 7, 1, 3, 1057
FileDescription: 360x5b89x5168x536bx58eb LSPx4feex590dx6a21x5757
OriginalFilename: LSPFix.EXE
Translation: 0x0804 0x04b0

Backdoor:Win32/PcClient also known as:

BkavW32.AIDetectVM.malware1
Elasticmalicious (high confidence)
MicroWorld-eScanDeepScan:Generic.Keylogger.2.90E865B9
FireEyeGeneric.mg.ca3d4f927b1fdc75
CAT-QuickHealTrojan.Magania.18692
McAfeeArtemis!CA3D4F927B1F
MalwarebytesBackdoor.Farfli
VIPRETrojan.Win32.Generic!BT
CrowdStrikewin/malicious_confidence_80% (D)
BitDefenderDeepScan:Generic.Keylogger.2.90E865B9
K7GWTrojan ( 004c81771 )
K7AntiVirusTrojan ( 004c81771 )
CyrenW32/S-6cc11623!Eldorado
SymantecML.Attribute.HighConfidence
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Malware.Deepscan-9770175-0
KasperskyTrojan-Banker.Win32.Banbra.wuxs
TencentMalware.Win32.Gencirc.10b40de8
Ad-AwareDeepScan:Generic.Keylogger.2.90E865B9
EmsisoftDeepScan:Generic.Keylogger.2.90E865B9 (B)
ComodoTrojWare.Win32.Fusing.CF@5afr59
F-SecureTrojan.TR/Agent.fjrz
DrWebBackDoor.Farfli.96
McAfee-GW-EditionGenericRXDW-XG!1EC4D694D7A2
SophosML/PE-A + Troj/AutoG-KB
IkarusTrojan.Win32.CoinMiner
JiangminTrojan.Generic.fjkle
AviraTR/Agent.fjrz
MAXmalware (ai score=80)
Antiy-AVLTrojan/Win32.SGeneric
MicrosoftBackdoor:Win32/PcClient
GridinsoftTrojan.Win32.PcClient.vb!s1
ArcabitDeepScan:Generic.Keylogger.2.90E865B9
SUPERAntiSpywareBackdoor.PcClient/Variant
ZoneAlarmTrojan-Banker.Win32.Banbra.wuxs
GDataDeepScan:Generic.Keylogger.2.90E865B9
CynetMalicious (score: 100)
AhnLab-V3Malware/Win32.Generic.C2832100
Acronissuspicious
BitDefenderThetaGen:NN.ZexaF.34700.xm1@airHR6fj
VBA32BScope.Trojan-GameThief.Magania
ZonerTrojan.Win32.80229
ESET-NOD32Win32/Farfli.BGG
RisingBackdoor.Farfli!8.B4 (TFE:5:bL8vVvLdNzM)
YandexTrojan.GenAsa!TUiWhMkZPf8
SentinelOneStatic AI – Malicious PE
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Midie.26C0!tr
AVGWin32:Malware-gen
Cybereasonmalicious.27b1fd
Qihoo-360HEUR/QVM18.1.4022.Malware.Gen

How to remove Backdoor:Win32/PcClient?

Backdoor:Win32/PcClient 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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