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[-] dan@upvote.au 40 points 8 months ago* (last edited 7 months ago)

That could be part of their plan though... Make people think they're from China when in reality they're a state-sponsored actor from a different country. Hard to tell at this point. The scary thing is they got very close to sneaking this malware in undetected.

A lot of critical projects are only maintained by one person who may end up burning out, so I'm surprised we haven't seen more attacks like this. Gain the trust of the maintainer (maybe fix some bugs, reply to some mailing-list posts, etc), take over maintenance, and slowly add some malware one small piece at a time, interspersed with enough legit commits that you become one of the top contributors (and thus people start implicitly trusting you).

Edit: Based on this analysis, they may have been based in a European timezone and just changed their timezone to UTC+8 before committing to Git to make it look like they were in China: https://rheaeve.substack.com/p/xz-backdoor-times-damned-times-and. Their commits were usually between 9 am and 6 pm Eastern European Time, and there are a few commits where the timezone was set to UTC+2 instead of UTC+8.

this post was submitted on 29 Mar 2024
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