Categories: Trojan

Trojan.Win32.Qshell.ogu removal instruction

The Trojan.Win32.Qshell.ogu 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.Qshell.ogu virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • At least one process apparently crashed during execution
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • Performs HTTP requests potentially not found in PCAP.
  • Reads data out of its own binary image
  • A process created a hidden window
  • 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
  • A scripting utility was executed
  • Uses Windows utilities for basic functionality
  • Uses Windows utilities for basic functionality
  • Detects Sandboxie through the presence of a library
  • Detects Avast Antivirus through the presence of a library
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Behavioural detection: Injection (inter-process)
  • Checks for the presence of known windows from debuggers and forensic tools
  • Created a process from a suspicious location
  • Collects and encrypts information about the computer likely to send to C2 server
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization
  • Attempts to modify Windows Defender using PowerShell
  • Attempts to execute suspicious powershell command arguments

How to determine Trojan.Win32.Qshell.ogu?


File Info:

name: C91DBA123CC183B7642D.mlwpath: /opt/CAPEv2/storage/binaries/0b97fd21ab1de51304066540181b0733fff5531a542f566f4671d18b26e90e97crc32: 5D8F97DAmd5: c91dba123cc183b7642ddb9ed016cf84sha1: 4b977d75e6584b6a8a90fba3c438c5758bafb1f9sha256: 0b97fd21ab1de51304066540181b0733fff5531a542f566f4671d18b26e90e97sha512: 1f98a549b770ba0838d42143293f77e13ac66f5cac625c94f13b0c1d89f7844dd2d1da469f54d4e595551f7da9622370e114fd3469e2c033404e8f30c1543643ssdeep: 196608:xwdVEePFtiRdv9+oUBYZpnwYRNX0C97a4jljg/Y8Up+kNX/:xwHPFtijVXp9wuNEC9e0jgLKnX/type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T187963351E5ADC4F6DA7124345EF84F73B1BBC36506364AB39B0423372772092358BAE6sha3_384: c64ad73e4403c45cb972ed209472be6cd21e323f6b924b16b4b6fefc288b19a4d24f81f54242271e2cce1faa107814d7ep_bytes: 558bec6aff6898c24100680691410064timestamp: 2019-02-21 16:00:00

Version Info:

CompanyName: Igor PavlovFileDescription: 7z Setup SFXFileVersion: 19.00InternalName: 7zS.sfxLegalCopyright: Copyright (c) 1999-2018 Igor PavlovOriginalFilename: 7zS.sfx.exeProductName: 7-ZipProductVersion: 19.00Translation: 0x0409 0x04b0

Trojan.Win32.Qshell.ogu also known as:

Bkav W32.AIDetect.malware2
MicroWorld-eScan Dropped:Trojan.GenericKD.39761499
FireEye Dropped:Trojan.GenericKD.39761499
CAT-QuickHeal Trojan.IGENERIC
Cylance Unsafe
K7AntiVirus Trojan-Downloader ( 005901c21 )
BitDefender Dropped:Trojan.GenericKD.39761499
K7GW Trojan-Downloader ( 005901c21 )
Cybereason malicious.23cc18
Cyren W32/MSIL_Troj.BRW.gen!Eldorado
Elastic malicious (high confidence)
ESET-NOD32 multiple detections
ClamAV Win.Dropper.Pswtool-9857487-0
Kaspersky Trojan.Win32.Qshell.ogu
NANO-Antivirus Trojan.Win32.Stealer.jpfclk
Rising Trojan.Starter!1.DDB6 (CLASSIC:bWQ1Op92/PBWuRq4)
Ad-Aware Dropped:Trojan.GenericKD.39761499
Sophos Mal/Generic-S
DrWeb Trojan.Siggen18.4227
TrendMicro TROJ_GEN.R002C0PF822
McAfee-GW-Edition GenericRXSS-KU!05C6B8FDA569
Emsisoft Dropped:Trojan.GenericKD.39761499 (B)
Jiangmin Trojan.Generic.hhjod
Avira TR/Dldr.Agent.hfnox
Kingsoft Win32.Troj.Agentb.kr.(kcloud)
Microsoft Trojan:Win32/Wacatac.B!ml
GData Dropped:Trojan.GenericKD.39761499
Acronis suspicious
BitDefenderTheta Gen:NN.ZemsilF.34712.du0@aOp73ld
ALYac Dropped:Trojan.GenericKD.39761499
MAX malware (ai score=80)
VBA32 CIL.StupidPInvoker-1.Heur
Malwarebytes Malware.AI.4009043829
Panda Trj/CI.A
TrendMicro-HouseCall TROJ_GEN.R002C0PF822
Ikarus Trojan-Downloader.MSIL.Agent
Fortinet MSIL/AGen.DL!tr.dldr
AVG Win32:DropperX-gen [Drp]
Avast Win32:DropperX-gen [Drp]
CrowdStrike win/malicious_confidence_90% (W)

How to remove Trojan.Win32.Qshell.ogu?

  • 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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