Categories: Malware

Should I remove “UDS:Downloader.Win32.Agent”?

The UDS:Downloader.Win32.Agent 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What UDS:Downloader.Win32.Agent virus can do?

  • Executable code extraction
  • Attempts to connect to a dead IP:Port (4 unique times)
  • Presents an Authenticode digital signature
  • 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
  • Collects information to fingerprint the system

Related domains:

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

How to determine UDS:Downloader.Win32.Agent?


File Info:

crc32: 62129B9Cmd5: cadb7f161d87fedd8aab2e92d862e3caname: CADB7F161D87FEDD8AAB2E92D862E3CA.mlwsha1: ff36d5d8f90e655d70cd5d6e2a0e9f4a3d483489sha256: 990d42b31c7c7ca97b70eca2e771c3847cb16ff102f3943e519f1b5fafcda46asha512: 02628cb4728cbad742c85549d504cfcf7a4189b49586d9aaf7b0a715b29bf8875ad716312371c5d4fc838d356ebe22156e1a87eb25e78ce4df7edd91d35526e0ssdeep: 24576:XJMahBRCPOtZ0Q9m256qEV53I3irri+XugHawdVoDvmKS2gOmdo:XJP/sQ82/srriAugHawdOsOmdotype: 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

UDS:Downloader.Win32.Agent also known as:

K7AntiVirus Riskware ( 0057e2fa1 )
Elastic malicious (high confidence)
Cynet Malicious (score: 100)
CrowdStrike win/malicious_confidence_80% (D)
Alibaba RiskWare:Win32/Downer.4b3899b9
K7GW Riskware ( 0057e2fa1 )
Cyren W32/Downer.B.gen!Eldorado
Symantec PUA.Gen.2
ESET-NOD32 a variant of Win32/RiskWare.Downer.E
APEX Malicious
Avast Win32:DangerousSig [Trj]
Kaspersky not-a-virus:UDS:Downloader.Win32.Agent
Sophos Generic ML PUA (PUA)
Comodo Packed.Win32.MUPX.Gen@24tbus
McAfee-GW-Edition GenericRXPC-BL!CADB7F161D87
FireEye Generic.mg.cadb7f161d87fedd
Jiangmin Downloader.Agent.ouq
Microsoft PUA:Win32/Downer
Gridinsoft Adware.Agent.sd!c
AhnLab-V3 PUP/Win.Downloader.C4528433
McAfee GenericRXPC-BL!CADB7F161D87
Malwarebytes PUP.Optional.ChinAd
Panda Trj/Genetic.gen
Rising Adware.Downloader!1.D6C8 (CLASSIC)
Ikarus PUA.RiskWare.Downer
Fortinet Riskware/Downer.DD89
AVG Win32:DangerousSig [Trj]

How to remove UDS:Downloader.Win32.Agent?

  • 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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