Categories: Malware

About “Win32/Kryptik.GDRC” infection

The Win32/Kryptik.GDRC 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 Win32/Kryptik.GDRC virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Compression (or decompression)
  • Creates RWX memory
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option
  • A process created a hidden window
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Uses Windows utilities for basic functionality
  • Executed a process and injected code into it, probably while unpacking
  • Attempts to restart the guest VM
  • A process attempted to delay the analysis task by a long amount of time.
  • Installs itself for autorun at Windows startup
  • Attempts to identify installed AV products by registry key
  • Attempts to modify browser security settings
  • Creates a copy of itself
  • Attempts to disable UAC
  • Attempts to disable Windows Defender
  • Collects information to fingerprint the system
  • Attempts to modify user notification settings

How to determine Win32/Kryptik.GDRC?


File Info:

crc32: 10767835md5: 31e65d20810162f4c73092b7943168b0name: 31E65D20810162F4C73092B7943168B0.mlwsha1: 0d9d78886e10172f0e128ad5f4ec4cca264ba205sha256: 8f50e14fcca88e76bdba18142d18e79ba50ab5f01840cc0a8a342f656e4f5e2dsha512: e223d72e3a4aec5e7bece10bc0acee85bfa2774f2ab2eb8df90786a6a5bad3a8bcaf2a77ea2f42ca1f827fcb156fd07a54a8a181fce5e9e6c64156f3ce567007ssdeep: 6144:RNmKZC+VhGPUsOg3+E/6MSfG558+F+iT3Hpz8WxqtsH61I:R3zhGPgglIf88+T5gW6b1Itype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GDRC also known as:

Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
ALYac Trojan.BrsecmonE.1
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.GDRC
APEX Malicious
Avast Win32:Rootkit-gen [Rtk]
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.Foreign.nypv
BitDefender Trojan.BrsecmonE.1
NANO-Antivirus Trojan.Win32.Kryptik.eyipkb
MicroWorld-eScan Trojan.BrsecmonE.1
Tencent Win32.Trojan.Foreign.Lknu
Ad-Aware Trojan.BrsecmonE.1
Sophos Mal/Generic-S
Comodo Malware@#2twvd3o651bbh
BitDefenderTheta Gen:NN.ZexaF.34678.xqW@aOhrOObi
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Rootkit.fc
FireEye Generic.mg.31e65d20810162f4
Emsisoft Trojan.BrsecmonE.1 (B)
Jiangmin Trojan.Foreign.egb
Webroot W32.Adware.Gen
Avira TR/Crypt.ZPACK.tdmpd
eGambit Unsafe.AI_Score_99%
Microsoft Trojan:Win32/Occamy.B
Arcabit Trojan.BrsecmonE.1
AegisLab Trojan.Multi.Generic.4!c
GData Trojan.BrsecmonE.1
AhnLab-V3 Win-Trojan/Sagecrypt.Gen
McAfee Artemis!31E65D208101
MAX malware (ai score=94)
VBA32 TrojanRansom.Foreign
Panda Trj/CI.A
Rising Ransom.Foreign!8.292 (CLOUD)
Yandex Trojan.Foreign!jHxV09+e598
Ikarus Trojan-Ransom.GandCrab
Fortinet W32/Kryptik.GDOJ!tr
AVG Win32:Rootkit-gen [Rtk]
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Foreign.HwoCuCMA

How to remove Win32/Kryptik.GDRC?

  • 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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