Malware

What is “Mal/Fesber-A”?

Malware Removal

The Mal/Fesber-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.

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 Mal/Fesber-A virus can do?

  • Sample contains Overlay data
  • Authenticode signature is invalid
  • Anomalous binary characteristics

How to determine Mal/Fesber-A?


File Info:

name: CA197CD48B4D264E9AE2.mlw
path: /opt/CAPEv2/storage/binaries/0008e4da0e131117a810dd93989c4df6475ca2123a6ecf714a593ba8a741512e
crc32: 6233F5D5
md5: ca197cd48b4d264e9ae251d060440e2d
sha1: a451f63761b51acf87d3c7567b6cd94064d8e772
sha256: 0008e4da0e131117a810dd93989c4df6475ca2123a6ecf714a593ba8a741512e
sha512: 652d612eaf140b30f35777f62d1093674bb2d1673760fd174c51e658c68487d3c0deab64b446d3c70b8422ed22b22ee17134cfe205e49c377283f569e9c53ff3
ssdeep: 49152:LtqthtqtktqtHtqtVtqtrtqtbtqthtqtHtqtzt:LtqthtqtktqtHtqtVtqtrtqtbtqthtqy
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T163C58E07A3D1E079E0B295741A7557719E36BE305E3AA3CF6760FA8E9C312858F28317
sha3_384: c4165a1be1976a513789ff62bc915e07f3d180b270519d74b33fab994692695d4fccf966faf62c942418da92561b4cb1
ep_bytes: 6a706898180001e8bf01000033db538b
timestamp: 2008-04-13 18:35:51

Version Info:

CompanyName: Microsoft Corporation
FileDescription: Notepad
FileVersion: 5.1.2600.5512 (xpsp.080413-2105)
InternalName: Notepad
LegalCopyright: © Microsoft Corporation. All rights reserved.
OriginalFilename: NOTEPAD.EXE
ProductName: Microsoft® Windows® Operating System
ProductVersion: 5.1.2600.5512
Translation: 0x0409 0x04b0

Mal/Fesber-A also known as:

BkavW32.AIDetect.malware1
LionicWorm.Win32.Fesber.o!c
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.GenericKD.31231822
ClamAVWin.Worm.Yero-1
FireEyeGeneric.mg.ca197cd48b4d264e
CAT-QuickHealWorm.Fesber.13050
McAfeeArtemis!CA197CD48B4D
CylanceUnsafe
VIPRETrojan.GenericKD.31231822
SangforTrojan.Win32.Save.a
AlibabaWorm:Win32/Fesber.c39c93f8
CrowdStrikewin/malicious_confidence_100% (D)
BaiduWin32.Worm.Agent.g
SymantecML.Attribute.HighConfidence
tehtrisGeneric.Malware
ESET-NOD32multiple detections
APEXMalicious
Paloaltogeneric.ml
CynetMalicious (score: 100)
KasperskyWorm.Win32.Fesber.g
BitDefenderTrojan.GenericKD.31231822
NANO-AntivirusTrojan.Win32.Fesber.fjhfvl
AvastWin32:Agent-AVCC [Trj]
TencentWin32.Worm.Fesber.Kzfl
SophosMal/Fesber-A
ComodoTrojWare.Win32.Cosmu.Z@2wye6j
DrWebWin32.HLLW.FSB
TrendMicroWORM_YERO.A
McAfee-GW-EditionBehavesLike.Win32.PWSZbot.vm
EmsisoftTrojan.GenericKD.31231822 (B)
SentinelOneStatic AI – Malicious PE
GDataGen:Trojan.Heur.GZ.ieW@b4XkOyk
AviraWORM/Fesber
MAXmalware (ai score=80)
ArcabitTrojan.Generic.D1DC8F4E
ZoneAlarmWorm.Win32.Fesber.g
MicrosoftTrojan:Win32/Wacatac.B!ml
GoogleDetected
BitDefenderThetaGen:NN.ZexaF.34646.Mo3@aiCKqvli
ALYacGen:Trojan.Heur.GZ.ieW@b4XkOyk
VBA32Virus.Fsb.1
MalwarebytesBladabindi.Backdoor.Njrat.DDS
TrendMicro-HouseCallWORM_YERO.A
RisingWorm.Fesber!1.65A8 (CLASSIC)
YandexTrojan.GenAsa!EKe4anrraVI
IkarusWorm.Win32.Fesber
MaxSecureTrojan.W32.Fesber.G
FortinetW32/Fesber.G!worm
AVGWin32:Agent-AVCC [Trj]
Cybereasonmalicious.48b4d2
PandaTrj/CI.A

How to remove Mal/Fesber-A?

Mal/Fesber-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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