Categories: Trojan

How to remove “TrojanDownloader:Win32/Chekafe.A”?

The TrojanDownloader:Win32/Chekafe.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 TrojanDownloader:Win32/Chekafe.A virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Sample contains Overlay data
  • Uses Windows utilities for basic functionality
  • HTTPS urls from behavior.
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Authenticode signature is invalid
  • Emumerates physical drives
  • Attempted to write directly to a physical drive
  • Attempts to modify proxy settings
  • Uses suspicious command line tools or Windows utilities
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine TrojanDownloader:Win32/Chekafe.A?


File Info:

name: E9EE60E206AA2EFC8C09.mlwpath: /opt/CAPEv2/storage/binaries/edc2e0b2740aaad2f7a2f5124eeb68d425209aeefb48cb4266190969fb95517bcrc32: 87CEB5C9md5: e9ee60e206aa2efc8c09c325ee6c6d34sha1: 68c8e5d71b684d31a739269ef8fb0ff6bb379789sha256: edc2e0b2740aaad2f7a2f5124eeb68d425209aeefb48cb4266190969fb95517bsha512: 23a56145ee7244cbec4a5856d1057a757a6a2916d10cb4ba77e26c3f8ed2aef92e3fdba64d48e39e51fa1c80fd25240eeda5c7612f6e37dc860bd474d971591assdeep: 12288:yXD5jZ1IOEC4cEBNz+1TjIZDr2LzBRe9xFwbVCzT+gT+4e:yXD5jZTwNz+Ch62jmVMTvCXtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1B1B412A055C8847BE2938B3141A29F35D27FEE8D7A3A118F1F453EB637372D2A616403sha3_384: cd4407c361b72acb405d50b5c68ff2956d244d38e4c1cf3836a52e92eee3ed12b5f216f94c3430ca051e1a9569d60be7ep_bytes: 81ec8001000053555633db57895c2418timestamp: 2008-05-03 14:08:38

Version Info:

0: [No Data]

TrojanDownloader:Win32/Chekafe.A also known as:

Bkav W32.AIDetectMalware
DrWeb Trojan.DownLoad2.14395
MicroWorld-eScan Dropped:Backdoor.Hupigon.261667
ClamAV Win.Worm.Mytob-270
FireEye Generic.mg.e9ee60e206aa2efc
ALYac Dropped:Backdoor.Hupigon.261667
Cylance unsafe
K7AntiVirus Trojan ( 005257651 )
Alibaba TrojanDownloader:Win32/Chekafe.a58ff209
K7GW Trojan ( 005257651 )
CrowdStrike win/malicious_confidence_100% (W)
BitDefenderTheta Gen:NN.ZexaF.36348.aiHday2F3Meb
VirIT Trojan.Win32.Agent2.ALQP
Cyren W32/Downloader.AT.gen!Eldorado
Symantec Downloader
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/TrojanDownloader.Chekafe.B
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky UDS:DangerousObject.Multi.Generic
BitDefender Dropped:Backdoor.Hupigon.261667
NANO-Antivirus Trojan.Win32.DownLoad2.cxagtv
Avast Win32:Trojan-gen
Tencent Win32.Trojan.ATRAPS.Ewnw
Sophos Generic ML PUA (PUA)
F-Secure Trojan.TR/Crypt.NSPM.Gen
VIPRE Dropped:Backdoor.Hupigon.261667
McAfee-GW-Edition BehavesLike.Win32.Trojan.hc
Trapmine suspicious.low.ml.score
Emsisoft Dropped:Backdoor.Hupigon.261667 (B)
Ikarus Trojan-Dropper.Win32.Mudrop
GData Dropped:Backdoor.Hupigon.261667
Jiangmin Trojan/Agent.qro
Avira TR/ATRAPS.Gen2
Antiy-AVL Trojan[Downloader]/Win32.Agent
Xcitium Malware@#by6p9ltwj5gi
Arcabit Backdoor.Hupigon.D3FE23
SUPERAntiSpyware Trojan.Agent/Gen-Downloader
ZoneAlarm UDS:DangerousObject.Multi.Generic
Microsoft TrojanDownloader:Win32/Chekafe.A
Google Detected
AhnLab-V3 Downloader/Win32.Agent.C74254
Acronis suspicious
McAfee Artemis!E9EE60E206AA
MAX malware (ai score=100)
VBA32 BScope.Trojan.SvcHorse.01643
Malwarebytes Trojan.Dropper
Panda Trj/CI.A
Rising Trojan.BHOHijack!1.663D (CLOUD)
Yandex Trojan.ATRAPS!N4yr5bERTd0
Fortinet W32/OnlineGames!tr
AVG Win32:Trojan-gen
Cybereason malicious.206aa2
DeepInstinct MALICIOUS

How to remove TrojanDownloader:Win32/Chekafe.A?

  • 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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