PUA

Should I remove “PUP.Optional.RelevantKnowledge”?

Malware Removal

The PUP.Optional.RelevantKnowledge 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 PUP.Optional.RelevantKnowledge virus can do?

  • Executable code extraction
  • Creates RWX memory
  • Expresses interest in specific running processes
  • Reads data out of its own binary image
  • Drops a binary and executes it
  • Installs an hook procedure to monitor for mouse events
  • Network activity detected but not expressed in API logs
  • Anomalous binary characteristics

How to determine PUP.Optional.RelevantKnowledge?



File Info:

crc32: 3DC339FB
md5: 3f963c6b238fa0e931965b82c94c2e63
name: ocean-island-3d-screensaver-ourscreensavers.exe
sha1: d1954f11c160277f3653cec1dd13b75d296c775c
sha256: 3012d1612439de6cecbdc66c93a4722a93a6c657a4eda8643194ce1299b5c86f
sha512: 08539484937dfd76487c3d535da5450721921d62963e53e801be4d7a9e62176950e93fb1f54540dadbd6617e0178c7e5e69a9aa4ee3435c88c00566364c985df
ssdeep: 98304:d/QYCLOu2prz/rHJ1RqpxTkzniIdYJpegyYIgLwWY6P5Ce/jsJfW/MyauWT:BNuerz/rpDbiIuJzyYIgkWY0COjspW/E
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive


Version Info:

LegalCopyright: (c) OurScreensavers.com
FileVersion: 3.0.0
CompanyName: OurScreensavers.com
Comments: 
ProductName: Ocean Island 3D Screensaver
FileDescription: Ocean Island 3D Screensaver
Translation: 0x0000 0x04e4

PUP.Optional.RelevantKnowledge also known as:

MicroWorld-eScanGen:Adware.Heur.oq0@Ri0L15ai
FireEyeGen:Adware.Heur.oq0@Ri0L15ai
CylanceUnsafe
BitDefenderGen:Adware.Heur.oq0@Ri0L15ai
Cybereasonmalicious.b238fa
SymantecAdware.Gen
APEXMalicious
AvastWin32:Relevant-S [PUP]
GDataGen:Adware.Heur.uq0@RiNjcepi
Kasperskynot-a-virus:Monitor.Win32.RK.cg
NANO-AntivirusRiskware.Win32.Mongoose.enqqnr
RisingAdware.PremierOpinion!1.BB5B (CLASSIC)
SophosRKnowledge Installer (PUA)
ComodoMalware@#1hdur3q6yi970
F-SecureAdware.ADSPY/Relevant.axar
DrWebAdware.Relevant.109
ZillyaTrojan.VBiframe.Win32.709
MaxSecureTrojan.Malware.12204301.susgen
EmsisoftGen:Adware.Heur.oq0@Ri0L15ai (B)
JiangminMonitor.RK.aq
WebrootW32.Malware.Gen
Avira[TempDir]/rkverify.exe
MAXmalware (ai score=81)
Antiy-AVLGrayWare[Downloader]/Win32.Adload.gen
ArcabitAdware.Heur.EC9E57
ZoneAlarmnot-a-virus:Monitor.Win32.RK.cg
MicrosoftTrojan:Win32/Vigorf.A
McAfeeGeneric PUP.he
MalwarebytesPUP.Optional.RelevantKnowledge
ESET-NOD32a variant of Win32/Adware.MarketScore.A
YandexAdware.Relevant!G+V9qJjcmiQ
eGambitGeneric.Malware
FortinetRiskware/OSS
AVGWin32:Relevant-S [PUP]
Qihoo-360Malware.Radar01.Gen

How to remove PUP.Optional.RelevantKnowledge?

PUP.Optional.RelevantKnowledge removal tool
  • 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.

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About the author

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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