Threat ID 411977850 created 2021-06-11 13:58:04 (UTC)

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Threat ID 411977850 created 2021-06-11 13:58:04 (UTC)

L1 Bithead

We are investigating alerts of this DNS signature for

I'd expect that a match for a clear text string in a DNS Request that it is very unlikely this is a false detection.

However to get alerts so quickly after this signature creation, suggests we are either very unlucky or  a very common public internet resource if causing this fly-by access. Anyone else receiving this threat alert shortly after an apparent WF update.





L1 Bithead

Looks like a false positive to me, I can't see why that particular Let'sEncrypt domain is flagged as malicious.

L0 Member

Did you happen to see additional events to late last evening until early this morning (12:33am ET to 1:08am ET)?  We saw them the first time during the time you posted in your original post.  

L0 Member

Since the update (2021-06-11) to malware this has caused significant malware alerts. To my knowledge there hasn't been any help desk tickets that parts of the internet isn't working.... Has anyone reached out to #Unit42 for an explanation?


Yeah we got bombarded by a few thousand all at once in that timeframe, I have them set to ignore until I see any evidence to suggest that they're something I should actually be concerned about.

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