Categories: Backdoor

Should I remove “Backdoor.Zyklon”?

The Backdoor.Zyklon 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.Zyklon virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • Starts servers listening on 127.0.0.1:9050
  • The binary likely contains encrypted or compressed data.
  • Executed a process and injected code into it, probably while unpacking
  • A process was set to shut the system down when terminated
  • Installs Tor on the infected machine
  • Checks the version of Bios, possibly for anti-virtualization
  • Checks the CPU name from registry, possibly for anti-virtualization
  • Creates a copy of itself
  • Attempts to interact with an Alternate Data Stream (ADS)
  • Collects information to fingerprint the system

How to determine Backdoor.Zyklon?


File Info:

crc32: 76527EBDmd5: c6fa4987940347af2b09647ab379a8c8name: C6FA4987940347AF2B09647AB379A8C8.mlwsha1: 5929da993968b00d53dd382770dbd21eec430c47sha256: 2a4a3d742d02e677940111b763b3224ec3bb160b772be5cad5424b34441326a3sha512: 33a97f803c43e9d8a01f62bb87f33a6db57c67b3ad254e658b93a562ebdd4e8ccea1367e8ff3cfd0fc0b89d8150f83c7b93e663a4d7df2f958e68437d2089bd1ssdeep: 24576:kiVY4mLd78bcL/p8QevR7HUFoubFtv1ct74zHRiPI1nNG:kZ78UWLHVuhxzxiPI1type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

0: [No Data]

Backdoor.Zyklon also known as:

K7AntiVirus Trojan ( 700000121 )
CAT-QuickHeal Trojan.Generic
ALYac Gen:Heur.Ransom.REntS.Gen.1
Malwarebytes Backdoor.Zyklon
Zillya Trojan.Kryptik.Win32.1221612
CrowdStrike win/malicious_confidence_100% (W)
BitDefender Gen:Heur.Ransom.REntS.Gen.1
K7GW Trojan ( 700000121 )
Cybereason malicious.794034
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/Zyklon.C
APEX Malicious
Paloalto generic.ml
Cynet Malicious (score: 99)
Alibaba Backdoor:MSIL/Omaneat.b283b914
NANO-Antivirus Trojan.Win32.Kryptik.ererdg
MicroWorld-eScan Gen:Heur.Ransom.REntS.Gen.1
Ad-Aware Gen:Heur.Ransom.REntS.Gen.1
Comodo Malware@#3si91n2ct7yql
BitDefenderTheta Gen:NN.ZemsilF.34670.rnW@a0QAEDb
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_FRS.0NA103AA19
FireEye Generic.mg.c6fa4987940347af
Emsisoft Gen:Heur.Ransom.REntS.Gen.1 (B)
Jiangmin Trojan.Generic.apsut
Avira TR/Dropper.Gen
eGambit Unsafe.AI_Score_100%
Kingsoft Win32.Troj.Undef.(kcloud)
Arcabit Trojan.Ransom.REntS.Gen.1
AegisLab Trojan.Win32.Generic.4!c
GData MSIL.Trojan.Zyklon.A
AhnLab-V3 Trojan/Win32.Skeeyah.R194230
VBA32 TScope.Trojan.MSIL
MAX malware (ai score=100)
TrendMicro-HouseCall TROJ_FRS.0NA103AA19
Tencent Win32.Trojan.Inject.Auto
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/Generic.AP.57260!tr
Panda Trj/GdSda.A
Qihoo-360 Win32/TrojanSpy.Omaneat.HwMAEpsA

How to remove Backdoor.Zyklon?

  • 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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Paul Valéry

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