Categories: Malware

What is “Downloader.Win32.Agent.mrew”?

The Downloader.Win32.Agent.mrew 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 Downloader.Win32.Agent.mrew virus can do?

  • Executable code extraction
  • Attempts to connect to a dead IP:Port (4 unique times)
  • Presents an Authenticode digital signature
  • A process attempted to delay the analysis task.
  • Reads data out of its own binary image
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic
  • Performs some HTTP requests
  • Unconventionial binary language: Chinese (Simplified)
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary likely contains encrypted or compressed data.
  • Collects information about installed applications
  • Attempts to modify proxy settings
  • Collects information to fingerprint the system

Related domains:

downloader.aldtop.com
client.aldtop.com
channel.gameloop.fun
resource.aldtop.com
api.aldtop.com

How to determine Downloader.Win32.Agent.mrew?


File Info:

crc32: 83BF25F4md5: af66b2ee5a13ed2c230003b2e56e16f1name: AF66B2EE5A13ED2C230003B2E56E16F1.mlwsha1: fb5832d6c90cbe8381b9065109ebe4dc40c5b5ebsha256: d6bf10f0b7a11907709ee8c87e49ef5822afc119272b1f1611d5fd946674655csha512: b37354fa4cc7b1a1bf98796ce894afbd19fa44bc4e8a409db046b28d11847bd03a8de5884823395de0b396220df01cd5edd6bc8c46ca64e99f505173d9908e8bssdeep: 24576:oJPdU/wlmZfjPFj+C8q5XK1QmSW08XeR+omgLXpuqPumiYd+:oJPdMwURdj95XYQF5n0qPhiYd+type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2018InternalName: FastDownloader.exe FileVersion: 3.2.0.8 CompanyName: -ProductName: x8f6fx4ef6x4e0bx8f7dx5668 ProductVersion: 3.2.0.8 FileDescription: OriginalFilename: FastDownloader.exe Translation: 0x0804 0x04b0

Downloader.Win32.Agent.mrew also known as:

K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
Cylance Unsafe
Sangfor PUP.Win32.Agent.mrew
CrowdStrike win/malicious_confidence_80% (D)
Alibaba Downloader:Win32/Downer.a9b472fd
K7GW Riskware ( 0040eff71 )
Cyren W32/Trojan.TNEK-1541
Symantec PUA.Gen.2
APEX Malicious
Avast Win32:MalwareX-gen [Trj]
Kaspersky not-a-virus:Downloader.Win32.Agent.mrew
SUPERAntiSpyware PUP.Downer/Variant
Sophos Generic PUA PL (PUA)
Comodo Packed.Win32.MUPX.Gen@24tbus
McAfee-GW-Edition Artemis!PUP
FireEye Generic.mg.af66b2ee5a13ed2c
Jiangmin Downloader.Agent.otj
Webroot W32.Adware.Gen
Microsoft PUA:Win32/Downer
Gridinsoft Adware.Agent.sd!c
McAfee Artemis!AF66B2EE5A13
VBA32 Downloader.Agent
Malwarebytes PUP.Optional.ChinAd
TrendMicro-HouseCall TROJ_GEN.R06CH07FA21
Rising Adware.Downloader!1.D6C8 (CLASSIC)
Ikarus PUA.RiskWare.Downer
Fortinet Riskware/Downer.DD89
AVG Win32:MalwareX-gen [Trj]

How to remove Downloader.Win32.Agent.mrew?

  • 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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