Categories: Backdoor

How to remove “Backdoor.DarkComet.UPX”?

The Backdoor.DarkComet.UPX 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 Backdoor.DarkComet.UPX 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
  • A process attempted to delay the analysis task.
  • Dynamic (imported) function loading detected
  • Performs HTTP requests potentially not found in PCAP.
  • HTTPS urls from behavior.
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Unconventionial language used in binary resources: Turkish
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Authenticode signature is invalid
  • Tries to unhook or modify Windows functions monitored by Cuckoo
  • Created a process from a suspicious location
  • Network activity contains more than one unique useragent.
  • Installs itself for autorun at Windows startup
  • Likely virus infection of existing system binary
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Anomalous binary characteristics

How to determine Backdoor.DarkComet.UPX?


File Info:

name: F1DA28EFDDFEC5E17295.mlwpath: /opt/CAPEv2/storage/binaries/b3146bdf4b38ca3515ab8685d383708e3afdb9dd8f9e573cd7899ce0e842e83ecrc32: 3D1EFE64md5: f1da28efddfec5e1729551dea6a4ba3asha1: ea4470e1e351c759bdf86c66d149c3405c853d9esha256: b3146bdf4b38ca3515ab8685d383708e3afdb9dd8f9e573cd7899ce0e842e83esha512: 3da474eaa0a750c6f1bcf5af829f10c7bc1c08c9c1d1fb198b34f08cc8866ecd0d0d6fdc9cb585670dac474755399cac77bd1b6832fb483ec123afddab579fbassdeep: 24576:TsqYmIyo7PPm8rHzFvUP62Ox6RTLZSuTNG2Q+qllT5:4qYmIF+sHzFsPVeIJSi1Q9lLtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T14025237EA1905422E140DDBCACBBE4D04744646C1D6DBA80ABCCEDA7337F1BD52F168Asha3_384: 8cf469b440ea0b4afdb36f6d2c8b6ada7725f8e4df53830536ff9e9bf7e61eca9557bf872352255c3ad73818c351f12eep_bytes: 60be00604f008dbe00b0f0ff5783cdfftimestamp: 1992-06-19 22:22:17

Version Info:

CompanyName: SynapticsFileDescription: Synaptics Pointing Device DriverFileVersion: 1.0.0.4InternalName: LegalCopyright: LegalTrademarks: OriginalFilename: ProductName: Synaptics Pointing Device DriverProductVersion: 1.0.0.0Comments: Translation: 0x041f 0x04e6

Backdoor.DarkComet.UPX also known as:

DrWeb Trojan.DownLoader22.9658
MicroWorld-eScan Dropped:Trojan.GenericKD.37940051
FireEye Dropped:Trojan.GenericKD.37940051
CAT-QuickHeal W32.Delf.NB4
ALYac Dropped:Trojan.GenericKD.37940051
Cylance Unsafe
Zillya Backdoor.DarkKomet.Win32.45107
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (W)
Alibaba Trojan:Win32/DarkKomet.359
K7GW Trojan ( 0056a6201 )
K7AntiVirus Trojan ( 0056a6201 )
BitDefenderTheta AI:Packer.F5AF03D517
Cyren W32/Backdoor.OAZM-5661
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Delf.NBX
APEX Malicious
ClamAV Win.Malware.Generic-9820446-0
Kaspersky Backdoor.Win32.DarkKomet.hqxy
BitDefender Dropped:Trojan.GenericKD.37940051
NANO-Antivirus Trojan.Win32.DarkKomet.fazbwq
Avast Win32:Evo-gen [Susp]
Tencent Virus.Win32.DarkKomet.a
Emsisoft Dropped:Trojan.GenericKD.37940051 (B)
Comodo Virus.Win32.Agent.DE@74b38h
VIPRE BehavesLike.Win32.Malware.eah (mx-v)
TrendMicro Virus.Win32.NAPWHICH.B
McAfee-GW-Edition GenericRXRA-IF!60B71D13F594
Sophos Generic ML PUA (PUA)
Ikarus JS.Trojan-Downloader.Agent
Jiangmin Win32/Synaptics.Gen
Avira DR/Delphi.Gen
Antiy-AVL Trojan[Downloader]/Script.AGeneric
Microsoft Trojan:Script/Phonzy.C!ml
ZoneAlarm Backdoor.Win32.DarkKomet.hqxy
GData Win32.Backdoor.Agent.AXS
Cynet Malicious (score: 99)
AhnLab-V3 Win32/Zorex.X1799
McAfee Artemis!F1DA28EFDDFE
MAX malware (ai score=85)
VBA32 TScope.Trojan.Delf
Malwarebytes Backdoor.DarkComet.UPX
Rising Trojan.Win32.Lebag.b (CLOUD)
Yandex Trojan.GenAsa!ETONJRQzPLk
SentinelOne Static AI – Malicious PE
Fortinet W32/CoinMiner.NBX!tr
AVG Win32:Evo-gen [Susp]
Cybereason malicious.fddfec
Panda Trj/CI.A

How to remove Backdoor.DarkComet.UPX?

  • 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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