Categories: Trojan

Trojan:Win32/Malgent.B malicious file

The Trojan:Win32/Malgent.B 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 Trojan:Win32/Malgent.B virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Anomalous file deletion behavior detected (10+)
  • Dynamic (imported) function loading detected
  • Performs HTTP requests potentially not found in PCAP.
  • Enumerates running processes
  • CAPE extracted potentially suspicious content
  • Authenticode signature is invalid
  • Steals private information from local Internet browsers
  • Collects information about installed applications
  • Checks the CPU name from registry, possibly for anti-virtualization
  • Attempts to modify proxy settings
  • Harvests cookies for information gathering
  • Harvests credentials from local FTP client softwares
  • Harvests information related to installed instant messenger clients
  • Harvests information related to installed mail clients
  • Collects information to fingerprint the system

How to determine Trojan:Win32/Malgent.B?


File Info:

name: FBD7FF749D74291C1B10.mlwpath: /opt/CAPEv2/storage/binaries/c78a884106e41d8bb006d6ef70dedb4d873b79fca94ab9dd1c839329bb4d9f48crc32: DB59E904md5: fbd7ff749d74291c1b10a768863c6ba9sha1: f7deea11da88c72f5343480b49a3442c62cfd2c9sha256: c78a884106e41d8bb006d6ef70dedb4d873b79fca94ab9dd1c839329bb4d9f48sha512: 99ad90217b20ae8783def007dda2aaa4306237a9782dcfad37a4497da307581148ca2f5fa5faf8e97875f137bbff5f4ab1438e91ea3c9bb10f86f081bab1c4b6ssdeep: 12288:wdY810rQGDnN1//gUuU04nN2ZEuTgDm+hAYaTlqb:R810rQGrNF/DJQTAATxtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T122C412D17A01CA37C06CA0B59815D252A9AF7F381BA54487FB582FAD1F3D2E41F24F26sha3_384: af314492557693b1497a0f0bd699b7486d571d9c8fbc2b938813fdfd7d9c2d4ccb3a284fe65ed3d71144f415b683d933ep_bytes: e893280000e978feffffcccc8b4c2404timestamp: 2018-07-06 08:25:40

Version Info:

InternalName: kozinokibi.exeLegalCopyright: Copyright (C) 2019, vtdutyTranslation: 0x00c9 0x01c8

Trojan:Win32/Malgent.B also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Siggen2.12561
ClamAV Win.Packed.Ulise-7171866-1
FireEye Generic.mg.fbd7ff749d74291c
CAT-QuickHeal Ransom.Stop.P5
ALYac Trojan.Brsecmon.1
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.AGEN.1041756
K7AntiVirus Trojan ( 0054d3b31 )
Alibaba TrojanBanker:Win32/Jimmy.c6f2f0a0
K7GW Trojan ( 0054d3b31 )
CrowdStrike win/malicious_confidence_100% (D)
BitDefenderTheta Gen:NN.ZexaF.34084.Ju0@a40x21p
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GSSQ
TrendMicro-HouseCall Trojan.Win32.SODINOK.SM.hp
Paloalto generic.ml
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Brsecmon.1
NANO-Antivirus Trojan.Win32.Jimmy.fucvny
MicroWorld-eScan Trojan.Brsecmon.1
Avast Win32:TrojanX-gen [Trj]
Tencent Win32.Trojan-banker.Jimmy.Ehhv
Ad-Aware Trojan.Brsecmon.1
Sophos Mal/Generic-S
Zillya Trojan.Kryptik.Win32.1701364
TrendMicro Trojan.Win32.SODINOK.SM.hp
McAfee-GW-Edition BehavesLike.Win32.Dropper.hh
Emsisoft Trojan.Brsecmon.1 (B)
Ikarus Trojan.Win32.Crypt
GData Trojan.Brsecmon.1
Jiangmin Trojan.Banker.Jimmy.wx
Avira HEUR/AGEN.1107202
Antiy-AVL Trojan/Generic.ASMalwS.2C19195
Microsoft Trojan:Win32/Malgent.B
SentinelOne Static AI – Malicious PE
AhnLab-V3 Malware/Win32.RL_Generic.R268756
Acronis suspicious
McAfee Sodinokibi!FBD7FF749D74
VBA32 Trojan.Fuerboos
Malwarebytes Trojan.MalPack.GS.Generic
APEX Malicious
Rising Trojan.Kryptik!1.B821 (CLASSIC)
Yandex Trojan.PWS.Jimmy!k7Hgm8eyjj8
MAX malware (ai score=100)
eGambit Unsafe.AI_Score_99%
Fortinet W32/GenKryptik.DQHN!tr
AVG Win32:TrojanX-gen [Trj]
Cybereason malicious.49d742
Panda Trj/GdSda.A
MaxSecure Ransomeware.CRAB.gen

How to remove Trojan:Win32/Malgent.B?

  • 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.
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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