Backdoor

Backdoor:Win32/Delf.PF removal guide

Malware Removal

The Backdoor:Win32/Delf.PF 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 Backdoor:Win32/Delf.PF virus can do?

  • A file was accessed within the Public folder.
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • Checks for the presence of known devices from debuggers and forensic tools
  • Checks for the presence of known devices from debuggers and forensic tools
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Backdoor:Win32/Delf.PF?


File Info:

name: D8A4B6ECC209E73BA61C.mlw
path: /opt/CAPEv2/storage/binaries/cac630c11c4bf6363c067fbf7741eae0ec70238d9c5e60d41f3ed8f65b56c1d1
crc32: D4C9B25C
md5: d8a4b6ecc209e73ba61cb505f9b0308d
sha1: 5d1881448bf310216787ea7dcab3fbb75060f3be
sha256: cac630c11c4bf6363c067fbf7741eae0ec70238d9c5e60d41f3ed8f65b56c1d1
sha512: 8820cfc00d2bb1fe635a66b121aca2b5aca72e0837c05b2a7cd265dd1b6a4c8ceaf78c296387741e493e934c9a8ffdddf63876503e8cb42d0c13aaa0fce930ec
ssdeep: 12288:HH2uyLYU+GJfnvb5FUb9zxJ4+bJ5joCvKMcgE5rYYk9:2uxU+GFDfUb9zxJbHjoWKdVG7
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1B4D423E487A99EE3E91A0671C976CD9082A9ED70DC543B1A23BDF11F2F75602305C72E
sha3_384: 50212e8ca5f03fdd5b5754f5c2b3dae35adf87dd523a3b0ab83c965a9c708cc0b47a4488e6c68d992ac17cb7ecce7f4e
ep_bytes: 60be00a059008dbe0070e6ffc787189c
timestamp: 2018-04-18 08:09:00

Version Info:

FileDescription: Windows Isolation audio graph
FileVersion: 6.3.9600.18263
LegalCopyright: © Microsoft Corporation. All rights reserved.
OriginalFilename: audev.exe
ProductName: Microsoft® Windows® System Operating
ProductVersion: 6.3.9600.18263
Translation: 0x0409 0x04e4

Backdoor:Win32/Delf.PF also known as:

BkavW32.AIDetectMalware
LionicTrojan.Win32.Delf.l!c
Elasticmalicious (high confidence)
MicroWorld-eScanGen:Trojan.Heur.LmKfr0AUsKei
ClamAVWin.Trojan.Cannon-6781562-0
FireEyeGen:Trojan.Heur.LmKfr0AUsKei
SkyhighGeneric.dzt
ALYacSpyware.Banker.Delf
MalwarebytesMalware.AI.4281400832
VIPREGen:Trojan.Heur.LmKfr0AUsKei
SangforTrojan.Win32.Delf.avhr
K7AntiVirusTrojan ( 00577d6d1 )
AlibabaTrojanSpy:Win32/Zebrocy.03aecd57
K7GWTrojan ( 00577d6d1 )
CrowdStrikewin/malicious_confidence_100% (W)
BitDefenderThetaAI:Packer.5743BF4B1C
SymantecTrojan Horse
ESET-NOD32a variant of Generik.HCNFFMR
APEXMalicious
CynetMalicious (score: 99)
KasperskyTrojan-Spy.Win32.Delf.avhr
BitDefenderGen:Trojan.Heur.LmKfr0AUsKei
NANO-AntivirusTrojan.Win32.Delf.fdefqa
AvastWin32:Malware-gen
TencentMalware.Win32.Gencirc.13b7a980
EmsisoftGen:Trojan.Heur.LmKfr0AUsKei (B)
F-SecureTrojan.TR/Spy.Delf.xjhfh
ZillyaTrojan.Delf.Win32.112120
TrendMicroTROJ_FRS.0NA103IG20
Trapminemalicious.high.ml.score
SophosMal/Generic-S
IkarusTrojan.SuspectCRC
JiangminTrojanSpy.Delf.jyo
WebrootW32.Trojan.Cannon
GoogleDetected
AviraTR/Spy.Delf.xjhfh
Antiy-AVLTrojan[Spy]/Win32.Apt28
Kingsoftmalware.kb.b.899
MicrosoftBackdoor:Win32/Delf.PF
XcitiumMalware@#3mkaxpbk8rrkk
ArcabitTrojan.Heur.LmKfr0AUsKei
ViRobotTrojan.Win32.Z.Delf.614400
ZoneAlarmTrojan-Spy.Win32.Delf.avhr
GDataGen:Trojan.Heur.LmKfr0AUsKei
VaristW32/Delf.GJRS-4108
AhnLab-V3Trojan/Win32.Agent.C2894162
McAfeeGeneric.dzt
MAXmalware (ai score=100)
VBA32Backdoor.Delf
Cylanceunsafe
PandaTrj/GdSda.A
TrendMicro-HouseCallTROJ_FRS.0NA103IG20
RisingBackdoor.Delf!8.780 (CLOUD)
MaxSecureTrojan.Malware.73440105.susgen
FortinetW32/Delf.AVHR!tr
AVGWin32:Malware-gen
DeepInstinctMALICIOUS

How to remove Backdoor:Win32/Delf.PF?

Backdoor:Win32/Delf.PF 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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