Enable "Super Duper Secure Mode" in non Edge-chromium-based browsers

Discussion in 'other anti-malware software' started by Sampei Nihira, Sep 9, 2021.

  1. Sampei Nihira

    Sampei Nihira Registered Member

    Joined:
    Apr 7, 2013
    Posts:
    3,367
    Location:
    Italy
    Is it possible?
    Probably the answer to this question is, yes.

    Thanks to this:

    @BoerenkoolMetWorst

    https://www.wilderssecurity.com/thr...d-edge-looks-like.414193/page-31#post-3025993

    that stimulated my curiosity.
    And thanks to an intervention elsewhere by

    @dmiranda

    who provided me with the link below:


    https://v8.dev/blog/jitless

    Super Duper Secure Mode in Edge completely disables JIT Turbofan V8:

    https://microsoftedge.github.io/edgevr/posts/Super-Duper-Secure-Mode/
    so you should correct the flag suggested by:

    @BoerenkoolMetWorst

    Code:
     --js-flags=--jitless
    with

    Code:
    --js-flags=--no-opt
    For verification you can run the SunSpider 1.0.2 test:


    https://webkit.org/perf/sunspider/sunspider.html

    as suggested by MalwareBytes Labs.

    Given the highly experimental nature of the content of this thread, which obviously reflects the experimental nature of the Super Duper Secure Mode that you can enable in Edge we recommend caution * and maybe some feedback.

    Thank you all for your attention.
    :)


    * = In the MT forum some users report that enabling SDSM prevents some browser extensions from working properly.


    To check your V8 Javascript:

    chrome://version
     
    Last edited: Sep 9, 2021
  2. moredhelfinland

    moredhelfinland Registered Member

    Joined:
    Mar 31, 2009
    Posts:
    350
    Location:
    Finland
    HeiDef's anti-fp is quite good, actually really good. Free version offer kinda of better protection what iv tested similar sofwares.
    But again, its a browser extension. Need to check if its sendin somenting information rather than updating itself....pcapping :D
     
  3. BoerenkoolMetWorst

    BoerenkoolMetWorst Registered Member

    Joined:
    Dec 22, 2009
    Posts:
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    Location:
    Outer space
    Why that? SDSM in Edge disables TurboFan and Sparkplug, no-opt only disables TurboFan. So I think --jitless is closer to Edge.

    With Brave I got 912ms compared to 427ms.
    EDIT:
    912ms for --jitless
    899ms for --no-opt
    427ms for standard.
     
    Last edited: Sep 12, 2021
  4. Sampei Nihira

    Sampei Nihira Registered Member

    Joined:
    Apr 7, 2013
    Posts:
    3,367
    Location:
    Italy
    :thumb:
    Yes,from the data you provided it is better to use "jitless".
    It would be interesting to know in detail if the vulnerabilities affect more Turbofan or Sparkplug because in this case there is an intermediate possibility to recover performance.
    Even if the recovery is very small.
     
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