SOSVirus » news » PUP.Optional.Systweak


Systweak is usually installed without your knowledge with freeware download. It is presented as an optimization software. Identified 03/05/2015.


– It belongs to a family of PUP (Potentially Unwanted Program).
– Vendor : PUP.Optional

Main actions:

– It starts a task planned in automatic (O39),
– It creates to many registry keys ‘Software’
– It installs as a (O42) program,
– It creates additional folders (O43),

ZHPDiag report:

(.) K9Tools.) -C:Program FilesK9-PC Protectork9pcp .exe
(.) K9Tools.) -C:Program FilesK9-PCFixerK9-PCFixer.exe
(.) K9Tools.) -C:Program FilesK9-PCFixerK9-PCFixer.exe
(.) K9Tools.) -C:Program FilesK9-PCFixerK9-PCFixer.exe
O39 – APT: K9-PCFixer_DEFAULT – (.) K9Tools.) -C:WindowsTasksK9-PCFixer_DEFAULT.job
O39 – APT: K9-PCFixer_DEFAULT – (.) K9Tools.) -C:WindowsSystem32TasksK9-PCFixer_DEFAULT
O39 – APT: K9-PCFixer_UPDATES – (.) K9Tools.) -C:WindowsTasksK9-PCFixer_UPDATES.job
O39-APT: K9-PCFixer_UPDATES-(. K9tools.) –C: WindowsSystem32TasksK9-PCFixer_UPDATES
O42-Logiciel: K9 PCFixer-(. K9 Tools.) –K9 PCFixer_is1
O42-Logiciel: K9-PC Protector-( –9E2253C2-A799-47B0-9864-90CF612BCC61_K9Tools_K9-~ 6898A8B4_is1

O43-CF D: 03/05/2015-20: 56: 36-[]—-D C: Program FilesK9-PC Protector
O43-CF D: 03/05/2015-20: 55: 45-[]—-D C: Program FilesK9-PCFixer


– Remove software via Windows Configuration Panel,
Remove with ZHPcleaner
Diagnose with ZHPDiag

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