Categories: Backdoor

Backdoor:Win32/FR malicious file

The Backdoor:Win32/FR 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:Win32/FR virus can do?

  • Creates RWX memory
  • Starts servers listening on 0.0.0.0:7718
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Anomalous binary characteristics

How to determine Backdoor:Win32/FR?


File Info:

crc32: B6AD2987md5: 81fe7a2fa311132027ef812933fe4586name: 81FE7A2FA311132027EF812933FE4586.mlwsha1: ada66eafa1b4f19ec2a8c8fef654f93ec489fa55sha256: e2af89f33c3a79e00a6cdd33820cceaba6702576255d4fff33e30d020243ea9csha512: b8138c6ad6b7eda48fd7d440c772b38b50629d6683307bdb38bd588dfa00f0f4f6df5dd575d34336193fc02e4159b9b2d48aaab335381f437fba2df584f4035dssdeep: 12288:zREPSooeoOzS+Evpzc6TdVXAMiDeIfl4xhD:zQSVeD/0pzc6XALctype: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed

Version Info:

LegalCopyright: InternalName: Glacier clientFileVersion: 1.0.0.0CompanyName: LegalTrademarks: Comments: ProductName: ProductVersion: 2.2.0.0FileDescription: OriginalFilename: Translation: 0x0804 0x03a8

Backdoor:Win32/FR also known as:

K7AntiVirus Riskware ( 0040eff71 )
DrWeb BackDoor.GDoor.30
Cynet Malicious (score: 99)
ALYac Gen:Variant.Ursu.365892
Cylance Unsafe
Sangfor Backdoor.Win32.G_Door.b
Alibaba Backdoor:Win32/G_Door.b9573474
K7GW Riskware ( 0040eff71 )
Cybereason malicious.fa3111
Cyren W32/Backdoor.QDIY-3229
Symantec Backdoor.G_Door.Client
ESET-NOD32 Win32/G_Door.B
APEX Malicious
Avast FileRepMalware
Kaspersky Backdoor.Win32.G_Door.b
BitDefender Gen:Variant.Ursu.365892
NANO-Antivirus Trojan.Win32.GDoor.dhmi
ViRobot Backdoor.Win32.G-Door.465408
MicroWorld-eScan Gen:Variant.Ursu.365892
Tencent Malware.Win32.Gencirc.10b658cc
Ad-Aware Gen:Variant.Ursu.365892
Sophos Mal/Generic-R + Troj/Bdoor-FR
Comodo Backdoor.Win32.G_Door.B@15uu
VIPRE Trojan.Win32.Generic!BT
TrendMicro BKDR_GLACIER.A
McAfee-GW-Edition BackDoor-FR.a.cli
FireEye Gen:Variant.Ursu.365892
Emsisoft Gen:Variant.Ursu.365892 (B)
Jiangmin Backdoor.G_Door.f
Webroot W32.Backdoor.Gen
Avira BDC/GDoor.300.Cli
eGambit Generic.Backdoor
Antiy-AVL Trojan/Generic.ASMalwS.3B71E
Kingsoft Win32.Hack.G_Door.b.(kcloud)
Microsoft Backdoor:Win32/FR
Gridinsoft Backdoor.Win32.Gen.cc!s2
Arcabit Trojan.Ursu.D59544
AegisLab Trojan.Win32.G.toOF
GData Gen:Variant.Ursu.365892
TACHYON Trojan/W32.Agent.1318912.BS
AhnLab-V3 Win-Trojan/GDoor.Client_v22.B
McAfee BackDoor-FR.a.cli
MAX malware (ai score=99)
VBA32 Backdoor.G_Door
Panda Trj/Binghe.Cli
TrendMicro-HouseCall BKDR_GLACIER.A
Yandex Trojan.GenAsa!GV/OWf0HO+k
Ikarus Backdoor.Win32.G_Door.B
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/GDoor.B!tr.bdr
AVG FileRepMalware
Paloalto generic.ml

How to remove Backdoor:Win32/FR?

  • 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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