Categories: PUA

Should I remove “MassDown (PUA)”?

The MassDown (PUA) 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 MassDown (PUA) virus can do?

  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Network activity detected but not expressed in API logs

How to determine MassDown (PUA)?


File Info:

crc32: 0F4FFD33md5: 57f04a3769e172a8be279615f2886506name: 57F04A3769E172A8BE279615F2886506.mlwsha1: 48d3582572a05a999362aad887544cf869352ce3sha256: d76943f52de21a72e295fbc4eeb5d591b8eff90c24d7d4e667c9b7f68bc7e0ecsha512: 712911f5d0e0dd2070f676e61bae576da536ec01fa47de49ab050244675a31323556b71b2defb02778b0bd75b2d1cad023012cd591112ee306d2ce14b169bc2fssdeep: 1536:U7HT5moXGdW3bCTYF6oDQ8Vj4IE9E5xYMsqCnouy8Nu:U7z5xGdWr6adjE9mxYMsqaoutMtype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

MassDown (PUA) also known as:

CAT-QuickHeal HackTool.Patcher.A
Cylance Unsafe
Zillya Tool.Patcher.Win32.20556
Sangfor Malware
Alibaba HackTool:Win32/Patcher.eb8aed51
K7GW Riskware ( 0040eff71 )
K7AntiVirus Riskware ( 0040eff71 )
Symantec Trojan.Gen.MBT
ESET-NOD32 a variant of Win32/HackTool.Patcher.A potentially unsafe
APEX Malicious
Avast Win32:Malware-gen
SUPERAntiSpyware Hack.Tool/Gen-Patcher
Sophos MassDown (PUA)
Comodo TrojWare.Win32.Patcher.~B@fptr
VIPRE Trojan.Win32.Generic!BT
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.PUP.kc
Trapmine malicious.moderate.ml.score
FireEye Generic.mg.57f04a3769e172a8
SentinelOne DFI – Suspicious PE
Webroot W32.Malware.Gen
Microsoft PUA:Win32/Keygen
AhnLab-V3 Trojan/Win32.Xema.C126682
MAX malware (ai score=97)
Malwarebytes HackTool.Agent
TrendMicro-HouseCall TROJ_GEN.R002H0CD720
Rising Malware.Undefined!8.C (CLOUD)
Yandex HackTool.Patcher!2qUd4GjnGNA
Ikarus Generic.Win32.Virtools-Hacktools
MaxSecure Trojan.Malware.7164915.susgen
Fortinet W32/Dx.JMJ!tr
AVG Win32:Malware-gen

How to remove MassDown (PUA)?

  • 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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Paul Valéry

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