Categories: Trojan

Trojan:Win32/Ekstak.ASEF!MTB removal tips

The Trojan:Win32/Ekstak.ASEF!MTB 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/Ekstak.ASEF!MTB virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Sample contains Overlay data
  • Uses Windows utilities for basic functionality
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • CAPE detected the embedded win api malware family
  • Created a service that was not started
  • Uses suspicious command line tools or Windows utilities
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Trojan:Win32/Ekstak.ASEF!MTB?


File Info:

name: 59D79A3659488371CD0C.mlwpath: /opt/CAPEv2/storage/binaries/acaa7d7a0bf98a655326603be04546e51688a0d1c7d5b09c0afa124513a71850crc32: A8944BD1md5: 59d79a3659488371cd0c2d7545ee89acsha1: 6e15b6bfef404bd82672cfdf178cfb80fc5a4a04sha256: acaa7d7a0bf98a655326603be04546e51688a0d1c7d5b09c0afa124513a71850sha512: a8b9e979a002ce4bcb20bbc989d466d2d0dd9acea53f989da79743bf1dcf2a9acbade7b2f585ff40dc4a42077acd9e979336d211ee99ded68afc818d71c4ce86ssdeep: 196608:8/E1Q8pP8H7Hi8xFs7gRbvdnNgWDvOgGA8dXnJo4dD:8s1pPynsERbvdNEA8dXrdDtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1B58633C8B11C65B4D5069F38AD354460BDAFFF06116BBA56B9E2C9C85B46C4AC803FECsha3_384: 7d4ec9c92cb32d2170bb17217d9004c5174d8e1dc679cad2160775a07afe823eb68151bd3397831f541018a67f88130cep_bytes: 558bec83c4c453565733c08945f08945timestamp: 2023-12-23 16:27:49

Version Info:

Comments: This installation was built with Inno Setup.CompanyName: FileDescription: STDDataManage Setup FileVersion: LegalCopyright: ProductName: STDDataManage ProductVersion: 1.2.2.3 Translation: 0x0000 0x04b0

Trojan:Win32/Ekstak.ASEF!MTB also known as:

Bkav W32.AIDetectMalware
Lionic Trojan.Win32.Ekstak.4!c
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Generic.34628281
FireEye Trojan.Generic.34628281
Skyhigh BehavesLike.Win32.ObfuscatedPoly.wc
McAfee Artemis!59D79A365948
Cylance unsafe
Zillya Trojan.Ekstak.Win32.76365
Sangfor Dropper.Win32.Ekstak.Vhiy
K7AntiVirus Trojan ( 005722f11 )
Alibaba TrojanDropper:Win32/Ekstak.584a3929
K7GW Trojan ( 005722f11 )
CrowdStrike win/malicious_confidence_100% (W)
Symantec Trojan.Gen.MBT
ESET-NOD32 a variant of Win32/TrojanDropper.Agent.SLC
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Trojan.Win32.Ekstak.asyly
BitDefender Trojan.Generic.34628281
NANO-Antivirus Trojan.Win32.Ekstak.kgftfn
Avast Other:Malware-gen [Trj]
Tencent Win32.Trojan.Ekstak.Timw
Emsisoft Trojan.Generic.34628281 (B)
F-Secure Trojan.TR/Drop.Agent.mcgkh
DrWeb BackDoor.Socks5Systemz.1
VIPRE Trojan.Generic.34628281
TrendMicro TROJ_GEN.R002C0DAF24
Sophos Mal/Generic-S
Ikarus Trojan-Dropper.Win32.Agent
GData Trojan.Generic.34628281
Avira TR/Drop.Agent.mcgkh
Kingsoft Win32.Trojan.Ekstak.asyly
Arcabit Trojan.Generic.D21062B9
ViRobot Trojan.Win.Z.Ekstak.8125361.F
ZoneAlarm Trojan.Win32.Ekstak.asyly
Microsoft Trojan:Win32/Ekstak.ASEF!MTB
Varist W32/Agent.SUWR-8531
AhnLab-V3 Trojan/Win.Malware-gen.R628942
ALYac Trojan.Generic.34628281
MAX malware (ai score=82)
Malwarebytes Trojan.Dropper.EKS
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_GEN.R002C0DAF24
MaxSecure Trojan.Malware.221810738.susgen
Fortinet W32/Agent.SLC!tr
AVG Other:Malware-gen [Trj]
DeepInstinct MALICIOUS

How to remove Trojan:Win32/Ekstak.ASEF!MTB?

  • 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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