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Kaspersky flagging uBlock Origin (Chrome and Firefox) for containing Trojan.Win32.Hosts2.gen #199

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Description

@TheStash

uBlock Origin 0.9.5.0 Firefox (Download Source: https://addons.mozilla.org/firefox/addon/ublock-origin/)
uBlock Origin 0.9.7.0 Chrome (Download Source: https://chrome.google.com/webstore/detail/ublock-origin/cjpalhdlnbpafiamejdnhcphjbkeiagm)

Kaspersky Internet Security 15.0.2.361 (File Anti-Virus & Web Anti-Virus Heurisitics are set at Deep-Scan)... i generally never encountered any issues with this settings with every day usage, as Kaspersky has low false positive rate.

Kaspersky logs screenshot:
ublockorigin

Activity

  1. gorhill commented on May 15, 2015

    @gorhill
    Owner

    Duplicate of uBlock-LLC/uBlock#763.

  2. TheStash commented on May 15, 2015

    @TheStash
    Author

    Does deleting or disinfecting the malicious object cause the extension not to function properly?

  3. gorhill commented on May 15, 2015

    @gorhill
    Owner

    Not sure what Kaspersky deleted.

    If it only deletes assets/thirdparties/someonewhocares.org/hosts/hosts, it should work fine, unless you select that filter list, in which case it won't load obviously.

  4. gorhill commented on May 15, 2015

    @gorhill
    Owner

    Actually, if it's on Chrome, you will have issues as Chrome will consider that the extension package has been tampered with and will flag it as such in the Extensions page. Firefox I am not sure, but they are also migrating soon to signed packages.

  5. TheStash commented on May 15, 2015

    @TheStash
    Author

    Chrome didn't flag it (yet) in the extensions page, and i am not really using this filter, but it is actually a bit scary when Kaspersky flags it, given their reputation and your user base type (people who care about privacy and security)

    Thank you for you work :-)

  6. added a commit that references this issue on Jun 19, 2025
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