Categories: Malware

Graftor.298508 removal instruction

The Graftor.298508 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 Graftor.298508 virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Unconventionial language used in binary resources: Russian
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
  • Installs itself for autorun at Windows startup
  • Exhibits possible ransomware file modification behavior
  • Writes a potential ransom message to disk
  • Creates a hidden or system file
  • Network activity detected but not expressed in API logs
  • Creates a copy of itself
  • Creates a known MarsJoke ransomware decryption instruction / key file.
  • Collects information to fingerprint the system

How to determine Graftor.298508?


File Info:

crc32: 7B46ABFDmd5: 87f8b0ac798135752cd18f20e6bf5976name: 87F8B0AC798135752CD18F20E6BF5976.mlwsha1: 344c69e59afa4aabf6bc55a3933c94d587df9b7fsha256: c4882bcf09ce1a0be7db6b09984cce19926d03df104c5b8e631d08caa3d2c0desha512: 2ba26d3698c3c50115614c2078f8e7c07805364d95945f29de00aa57b0f2b8408a20e196074a71a22f84f6720fd9a8adbf9d6848d27050f7f651db8f4c6a10a7ssdeep: 12288:xfGVwGAK/2+/4YNQ5Kb4gGRnW/8SK65CiMTPLzEPQNYksxo+:xfG2GAk2+JNQ85GRnW/rKPTTJctype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: InternalName: sysmonitor.exeFileVersion: 1.0.0.1CompanyName: MicrosoftProductName: ProductVersion: 1.0.0.1FileDescription: System monitorOriginalFilename: sysmonitor.exeTranslation: 0x0409 0x04e4

Graftor.298508 also known as:

K7AntiVirus Trojan ( 0055e3ef1 )
DrWeb Trojan.Encoder.5704
ALYac Gen:Variant.Graftor.298508
Cylance Unsafe
Zillya Trojan.Filecoder.Win32.3026
Alibaba Ransom:Win32/MarsJoke.ali1020008
K7GW Trojan ( 0055e3ef1 )
Cybereason malicious.c79813
Symantec Ransom.MarsJoke
ESET-NOD32 Win32/Filecoder.NHO
APEX Malicious
Avast FileRepMalware
Kaspersky UDS:Trojan.Win32.Generic
BitDefender Gen:Variant.Graftor.298508
NANO-Antivirus Trojan.Win32.TrjGen.efmyrf
MicroWorld-eScan Gen:Variant.Graftor.298508
Tencent Malware.Win32.Gencirc.114bb2f1
Ad-Aware Gen:Variant.Graftor.298508
Sophos Mal/Generic-R + Troj/Ransom-DUO
BitDefenderTheta Gen:NN.ZexaF.34058.Kq0@am9tMOdk
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Generic.ags
FireEye Gen:Variant.Graftor.298508
Emsisoft Gen:Variant.Graftor.298508 (B)
Jiangmin Worm.Generic.ccs
Webroot Trojan.Ransom.Jokemars.A
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:Win32/Polyglot.A
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Graftor.298508
TACHYON Ransom/W32.MarsJoke.593920
AhnLab-V3 Malware/Win32.Ransom_.C1586364
McAfee Generic.ags
MAX malware (ai score=100)
VBA32 BScope.TrojanRansom.Polyglot
Panda Trj/GdSda.A
Yandex Trojan.GenAsa!U8CSt8jkwMI
Ikarus Worm.Genun
Fortinet W32/Generic.AP.FBF40A!tr
AVG FileRepMalware
Paloalto generic.ml
Qihoo-360 Win32/Worm.Generic.HwkA1rkA

How to remove Graftor.298508?

  • 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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