SOSVirus » news » PUP.Optional.Cassiopesa


Cassiopesa is a software usually installs without your knowledge vith the download of freeware. In fact some sites use the method of repackaging. This is an operation that is to redo the module software installation by adding download options. These options allow to add other software as for example toolbars browser, or potentially unwanted software. The addition of these new programs can decrease the performance of the system but also slow or redirect internet surfing. As a general rule, should focus on the author’s official site to download your software.
Identified : 06/06/2015.


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

Main Actions

– It changes the start page of the browser Mozilla Firefox (M0),
– It changes the start page of the browser Internet Explorer (R0),
– It changes the browser Internet Explorer search page (R1),
– It installs as a process launched at startup of the system (RP),
– It starts a task planned in automatic (O39),
– It installs as a program (O42),
– It creates to many registry keys ‘Software’
– It creates additional folders (O43),
– It moved to the Windows prefetcher folder (O45).
– It creates multiple files users (O61),
– It changes the Internet research provider (O69),

M0 – MFSP: prefs.js
R0 – HKCUSOFTWAREMicrosoftInternet ExplorerMain,Start Page =
R1 – HKLMSOFTWAREMicrosoftInternet ExplorerAboutURLs,Tabs =
(…) — C:UsersCoolmanAppDataRoamingTNY_CA~1UPDATE~1UPDATE~1.exe
O39 – APT: Tny_cassiopesa – (…) — C:WindowsTasksTny_cassiopesa.job
O39 – APT: Tny_cassiopesa – (…) — C:WindowsSystem32TasksTny_cassiopesa
O42 – Logiciel: Tny_Cassiopesa – (.Tny_Cassiopesa.) — Tny_Cassiopesa

O43 – CFD: 06/06/2015 – 19:13:19 – [] —-D C:Program FilesTny_Cassiopesa
O43 – CFD: 06/06/2015 – 19:13:27 – [] —-D C:UsersCoolmanAppDataRoamingTny_cassiopesa
O61 – LFC: 06/06/2015 – 19:16:35 —A- . (…) — C:UsersCoolmanAppDataRoamingTny_cassiopesaUpdateProcUpdateTask.exe
O69 – SBI: SearchScopes {015DB5FA-EAFB-4592-A95B-F44D3EE87FA9} – (Cassiopesa) –



Remove Software

– Remove software in Windows Configuration Panel,

Remove with ZHPcleaner

Diagnose with ZHPDiag

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