About “Backdoor.Delf.Spold.A” infection

The Backdoor.Delf.Spold.A 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 Backdoor.Delf.Spold.A virus can do?

At least one process apparently crashed during execution
Sample contains Overlay data
The binary contains an unknown PE section name indicative of packing
Authenticode signature is invalid

How to determine Backdoor.Delf.Spold.A?


File Info:
name: 274710F5F6B43BD44876.mlw
path: /opt/CAPEv2/storage/binaries/cfd6bcd0fa9315f20c23f672fd5e33f33517ac9448cc0c2e16de0dbd394175e2
crc32: 71662B25
md5: 274710f5f6b43bd4487696ebd3b333fc
sha1: fa7913e1743d3ea81f42ee2e3090d1f5eca7fa65
sha256: cfd6bcd0fa9315f20c23f672fd5e33f33517ac9448cc0c2e16de0dbd394175e2
sha512: b09cef8cd85f4fd70dad8cc0e3a15cabe52307dbb56d72905e069fa3390c31e40d81e96bda3a65f48e433b92b61ead32818a6653618033afbf49b5dd65512f24
ssdeep: 6144:mw+5iVrYjQf/KOgzTrMzWdKT1f/5dWDquH2sJgHvKr8e0:ooVrZf/ATwzbS2mgPl
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T180840282FA87DE70C58149348A5ACF646F36FD25FDA402533688BB9F1CB71811E6A707
sha3_384: 57a684e143084809dff6e2cd4740634db83d81e4a17444b6d734402a4b56c649092ea8d63a582d2bb3fa1e1001a7653e
ep_bytes: f5b984420000e99d00000028f3946569
timestamp: 1992-06-19 22:22:17

Version Info:
0: [No Data]

Backdoor.Delf.Spold.A also known as:

Bkav	W32.OfficeOverQKA.Fam.Worm
tehtris	Generic.Malware
MicroWorld-eScan	Backdoor.Delf.Spold.A
FireEye	Generic.mg.274710f5f6b43bd4
CAT-QuickHeal	W32.Virut.G
ALYac	Backdoor.Delf.Spold.A
Cylance	Unsafe
Zillya	Virus.Nakuru.Win32.1
Sangfor	Trojan.Win32.Save.a
K7AntiVirus	Virus ( f10002001 )
K7GW	Virus ( f10002001 )
CrowdStrike	win/malicious_confidence_100% (W)
Baidu	Win32.Virus.Nakuru.a
VirIT	Win32.Scribble.A
Cyren	W32/Virut.AI!Generic
Symantec	Backdoor.Delf
Elastic	malicious (high confidence)
ESET-NOD32	Win32/Virut.NBP
APEX	Malicious
ClamAV	Win.Trojan.Generic-42
Kaspersky	Virus.Win32.Nakuru.a
BitDefender	Backdoor.Delf.Spold.A
NANO-Antivirus	Trojan.Win32.Hesv.itombk
SUPERAntiSpyware	Trojan.Agent/Gen-Dropper
Avast	Win32:Virtu-A [Inf]
Tencent	Virus.Win32.Nakuru.a
Ad-Aware	Backdoor.Delf.Spold.A
Emsisoft	Backdoor.Delf.Spold.A (B)
Comodo	TrojWare.Win32.TrojanDropper.Loops.A_10@1n8q4f
DrWeb	Win32.HLLP.Kespo
VIPRE	Backdoor.Delf.Spold.A
TrendMicro	PE_VIRUX.A-1
McAfee-GW-Edition	BehavesLike.Win32.BadFile.fc
Trapmine	malicious.moderate.ml.score
Sophos	Mal/Generic-S
Ikarus	Trojan-Dropper.Delf
GData	Backdoor.Delf.Spold.A
Jiangmin	Win32/PatchFile.iw
Avira	TR/Drop.Loops.A.1
MAX	malware (ai score=84)
Arcabit	Backdoor.Delf.Spold.A
ViRobot	Win32.Nakuru.A
Microsoft	Trojan:Win32/Wacatac.B!ml
Cynet	Malicious (score: 100)
AhnLab-V3	Trojan/Win32.Xema.C113396
McAfee	Artemis!274710F5F6B4
VBA32	Virus.Virut.06
Malwarebytes	Malware.AI.2088660215
TrendMicro-HouseCall	PE_VIRUX.A-1
Rising	Malware.UDM!0.18A076 (CLASSIC)
Yandex	Trojan.GenAsa!crAYjzJGleo
SentinelOne	Static AI – Malicious PE
MaxSecure	Virus.Nakuru.A
Fortinet	W32/Virut.CE
BitDefenderTheta	AI:FileInfector.C9457D4313
AVG	Win32:Virtu-A [Inf]
Cybereason	malicious.5f6b43

How to remove Backdoor.Delf.Spold.A?

Backdoor.Delf.Spold.A 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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