Categories: Malware

About “Win32/RA-based.NFA” infection

The Win32/RA-based.NFA 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/RA-based.NFA virus can do?

  • Reads data out of its own binary image
  • Drops a binary and executes it
  • Performs some HTTP requests
  • The binary likely contains encrypted or compressed data.
  • Uses Windows utilities for basic functionality
  • Behavior consistent with a dropper attempting to download the next stage.
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • Attempts to modify proxy settings
  • Operates on local firewall’s policies and settings
  • Attempts to disable UAC
  • The sample wrote data to the system hosts file.
  • Anomalous binary characteristics
  • Attempts to modify Explorer settings to prevent hidden files from being displayed
  • Uses suspicious command line tools or Windows utilities

Related domains:

wrs41.winshipway.com
ca91-1.winshipway.com

How to determine Win32/RA-based.NFA?


File Info:

crc32: 0679EDC1md5: 68e871fb6f005f573658193b28d2c70cname: 68E871FB6F005F573658193B28D2C70C.mlwsha1: cdd99af3056e07e265ea90a91bfb589bf14faf0fsha256: 4e229ef28f01bb90d24d69feb24b64c1995f449dd05f7666894ecade202f9946sha512: 52cbc4830d0b9e55e4271e0a6a33e7677d2091b66e520e042835394cdae8a7e93e8d27851adc7bf59dcc3e47cf75800e1515ec14e90cfb845b8c2106f0e67c03ssdeep: 24576:B4lavt0LkLL9IMixoEg5acAaI57Nuq9MmCS:Qkwkn9IMH5acAb57YaPCStype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0809 0x04b0

Win32/RA-based.NFA also known as:

Bkav W32.AIDetect.malware1
DrWeb Trojan.DownLoader13.27068
MicroWorld-eScan Trojan.GenericKD.30371188
FireEye Generic.mg.68e871fb6f005f57
Qihoo-360 Win32/Trojan.Ransom.de2
ALYac Trojan.GenericKD.30371188
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 004fb3821 )
BitDefender Trojan.GenericKD.30371188
K7GW Trojan ( 004fb3821 )
Cybereason malicious.b6f005
BitDefenderTheta AI:Packer.0C17CF7117
Cyren W32/Agent.AFI.gen!Eldorado
Symantec Trojan.Gen.MBT
TrendMicro-HouseCall HackTool.Win32.RemoteAdmin.AB
Avast Win32:Trojan-gen
ClamAV Win.Trojan.Agent-1383156
Kaspersky Trojan-Ransom.Win32.Blocker.hgll
NANO-Antivirus Trojan.Win32.Blocker.eyrnmw
AegisLab Trojan.Win32.Blocker.j!c
Tencent Malware.Win32.Gencirc.10b7d901
Ad-Aware Trojan.GenericKD.30371188
Sophos Mal/Generic-S
F-Secure Heuristic.HEUR/AGEN.1134167
VIPRE Trojan.Win32.Generic!BT
TrendMicro HackTool.Win32.RemoteAdmin.AB
McAfee-GW-Edition BehavesLike.Win32.TrojanAitInject.tc
Emsisoft Trojan.GenericKD.30371188 (B)
Ikarus Trojan.Win32.RA
Avira HEUR/AGEN.1134167
MAX malware (ai score=98)
Microsoft Trojan:Win32/Occamy.B
Arcabit Trojan.Generic.D1CF6D74
ZoneAlarm Trojan-Ransom.Win32.Blocker.hgll
GData Trojan.GenericKD.30371188
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Blocker.R270229
McAfee GenericR-EOT!68E871FB6F00
TACHYON Ransom/W32.Blocker.1116160
Malwarebytes Malware.AI.4283313691
APEX Malicious
ESET-NOD32 Win32/RA-based.NFA
Fortinet Riskware/Nt110
AVG Win32:Trojan-gen
Paloalto generic.ml
MaxSecure Trojan.Malware.300983.susgen

How to remove Win32/RA-based.NFA?

  • 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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