Kidnappningsprogrammet Synolocker sätter skräck i användare av Synology Diskstation-serien. Det skadliga programmet tar sig in i NAS-enheter, krypterar filer och begär sedan en lösensumma på motsvarande 2 500 kronor i utbyte mot krypteringsnyckeln. I annat fall går filerna förlorade.

We are fully dedicated to investigating this issue and possible solutions. Based on our current observations, this issue only affects Synology NAS servers running some older versions of DSM (DSM 4.3-3810 or earlier), by exploiting a security vulnerability that was fixed and patched in December, 2013. At present, we have not observed this vulnerability in DSM 5.0.

Nu agerar Synology och uppmanar alla med en NAS-enhet i Diskstation-serien att se över mjukvaran. Enligt tillverkaren ska kidnappningsprogrammet utnyttja en säkerhetsbrist i tidigare versioner av programvaran Diskstation Manager (DSM), närmare bestämt DSM 4.3-3810 och äldre. Den som använder aktuella DSM 5.0 är tillsynes säker.

Synology anger inte exakt vad det är för sårbarhet som utnyttjas, men talar om att felet rättades i december 2013. I ändringsloggen till DSM 4.3-3810 Update 3, som släpptes den 19 december, noteras ett säkerhetsproblem som kan ge obehöriga tillträde genom File Station, Windows File Service (SMB), Web DAV samt DSM via HTTP och Telnet. Detta ska vara tilltäppt i denna och senare versioner av programvaran.

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Synology's official statement regarding the recent ransomware SynoLocker

We are fully dedicated to investigating this issue and possible solutions. Based on our current observations, this issue only affects Synology NAS servers running some older versions of DSM (DSM 4.3-3810 or earlier), by exploiting a security vulnerability that was fixed and patched in December, 2013. At present, we have not observed this vulnerability in DSM 5.0.

For Synology NAS servers running DSM 4.3-3810 or earlier, and if users encounter any of the below symptoms, we recommend they shutdown their system and contact our technical support team here.

  • When attempting to log in to DSM, a screen appears informing users that data has been encrypted and a fee is required to unlock data.

  • A process called “synosync” is running in Resource Monitor.

  • DSM 4.3-3810 or earlier is installed, but the system says the latest version is installed at Control Panel > DSM Update.

For users who have not encountered any of the symptoms stated above, we highly recommend downloading and installing DSM 5.0, or any version below:

  • For DSM 4.3, please install DSM 4.3-3827 or later

  • For DSM 4.1 or DSM 4.2, please install DSM 4.2-3243 or later

  • For DSM 4.0, please install DSM 4.0-2259 or later

DSM can be updated by going to Control Panel > DSM Update. Users can also manually download and install the latest version from our Download Center.

If users notice any strange behaviour or suspect their Synology NAS server has been affected by the above issue, we encourage them to contact us at security@synology.com where a dedicated team will look into their case. We sincerely apologise for any problems or inconvenience this issue has caused our users. We will keep you updated with the latest information as we address this issue.

Thank you.
Synology UK

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