TrojanDropper:Win32/Delf.BB malicious file

The TrojanDropper:Win32/Delf.BB 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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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 TrojanDropper:Win32/Delf.BB virus can do?

At least one process apparently crashed during execution
The binary contains an unknown PE section name indicative of packing
The executable is compressed using UPX
Authenticode signature is invalid

How to determine TrojanDropper:Win32/Delf.BB?


File Info:
name: A0F76CC52A542E48B829.mlw
path: /opt/CAPEv2/storage/binaries/6e305cdea5b49296d2dc4f5063e541cdeebf2e738477cee22e804bcfcfb1f917
crc32: A81BDFE0
md5: a0f76cc52a542e48b829ca6539aaaea8
sha1: a8c465c9175d778a4c9114257f79c2ed5246fa6c
sha256: 6e305cdea5b49296d2dc4f5063e541cdeebf2e738477cee22e804bcfcfb1f917
sha512: 8862703951e0ade9a9119f8292288420ef84c298a2dce1900e07b4b0d1fc66dbf490fd46a7ba06b1d0f1d50c08acdd12ac093de7e155b82243a7adec6a47e0a7
ssdeep: 768:hepnqPS/1szupKmX2duwTK+UP9lcXZ2Q1:EpnqPS/1sapjGdu/9lcP1
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T13AC38D57E2D5ED77C1685AFC5E26811AFABB6B323F0D85468E9A2D0DCD893C40E1C10E
sha3_384: 7fd83958a058ca6ac00c51c07eb9d9cfb80b9b21109aa8fe4bfb08fac053aec3742f5ae5aa109e2306906135aab2a464
ep_bytes: 558bec81c4dcfeffff53565733c08985
timestamp: 1992-06-19 22:22:17

Version Info:
0: [No Data]

TrojanDropper:Win32/Delf.BB also known as:

Bkav	W32.AIDetect.malware1
Elastic	malicious (high confidence)
Cynet	Malicious (score: 100)
McAfee	W32/Fesber.worm.gen
Malwarebytes	Bladabindi.Backdoor.Njrat.DDS
VIPRE	Trojan.Dropper.Delf.BB
Sangfor	Suspicious.Win32.Save.a
CrowdStrike	win/malicious_confidence_100% (D)
K7GW	Trojan ( 004bcce41 )
K7AntiVirus	Trojan ( 004bcce41 )
Baidu	Win32.Trojan-Dropper.Agent.ad
Symantec	ML.Attribute.HighConfidence
ESET-NOD32	Win32/Fesber.A
APEX	Malicious
BitDefender	Trojan.Dropper.Delf.BB
NANO-Antivirus	Trojan.Win32.Drop.cspebn
ViRobot	Worm.Win32.A.Fesber.4104704
MicroWorld-eScan	Trojan.Dropper.Delf.BB
Avast	Win32:Agent-AVCC [Trj]
Tencent	Backdoor.Win32.Delf.fa
Ad-Aware	Trojan.Dropper.Delf.BB
Emsisoft	Trojan.Dropper.Delf.BB (B)
Comodo	Worm.Win32.Fesber.A@3dvq
F-Secure	Worm.WORM/Fesber
DrWeb	Win32.HLLW.FSB
Zillya	Worm.Fesber.Win32.2900
McAfee-GW-Edition	W32/Fesber.worm.gen
Trapmine	malicious.moderate.ml.score
FireEye	Generic.mg.a0f76cc52a542e48
Sophos	W32/Fesber-A
SentinelOne	Static AI – Malicious PE
GData	Trojan.Dropper.Delf.BB
Jiangmin	TrojanDropper.Fesber
Avira	WORM/Fesber
Antiy-AVL	Worm/Win32.Fesber
Microsoft	TrojanDropper:Win32/Delf.BB
AhnLab-V3	Worm/Win32.RL_Fesber.R353758
ALYac	Trojan.Dropper.Delf.BB
MAX	malware (ai score=85)
Cylance	Unsafe
Rising	Worm.Win32.Fesber.e (CLASSIC)
Ikarus	Worm.Win32.Fesber
Fortinet	W32/Fesber@mm
BitDefenderTheta	Gen:NN.ZelphiF.34582.hmW@a8uqHWj
AVG	Win32:Agent-AVCC [Trj]
Cybereason	malicious.52a542

How to remove TrojanDropper:Win32/Delf.BB?

TrojanDropper:Win32/Delf.BB 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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