Thread: BackDoorLock hack - prevents silent updates
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Old 02-08-2016, 03:07 PM   #226
nixkalo
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Join Date: Aug 2009
Device: hanlin V3, K4NT, PW3
Thinking out loud:
Since I had to use dnsmaq for the 5.6.5 JB, I looked at what things the kindle was requesting. One of them was

query[A] softwareupdates.amazon.com from 192.168.1.92

And one of the records in /opt/var/local/reg/ServerConfig.db (and sqlite3 file) is:
Code:
INSERT INTO "properties" VALUES('dcd','url.dsts','https://softwareupdates.amazon.com/software/inventory');
So, would tweaking with this sqlite3 file help in preventing OTAs?

OTOH, url.dsts appears as a string inside the binary /usr/bin/otav3, and this same binary has, near it, this other string:
/var/local/system/SKIP_UPDATE_CHECK

Could this help?

my .02$
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