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4llan

45 karma · joined December 6, 2016

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4llan··on Unauthenticated RCE in Motorola's MR2600 Router
Really curious the use of the "zoom.com" domain. However, since the endpoint uses insecure HTTP, maybe this should be a simple endpoint/hostname redirection.

A search of "router/firmware/query.aspx" leads me to D-Link endpoints who also uses the "wrpd" subdomain.

4llan··on Making Debian or Fedora persistent live images
rpm-ostree is being phased-out in favor of bootc[1], which uses ostree in the underlying code.

1. https://bootc.dev/bootc/

4llan··on OpenSSH Backdoors
Gynvael Coldwind made a great analysis about it: https://gynvael.coldwind.pl/?lang=en&id=782

https://news.ycombinator.com/item?id=39878681

xz/liblzma: Bash-stage Obfuscation Explained

4llan··on CronRAT malware hides behind February 31st
> The CronRAT adds a number of tasks to crontab with a curious date specification: 52 23 31 2 3. These lines are syntactically valid, but would generate a run time error when executed. However, this will never happen as they are scheduled to run on February 31st. Instead, the actual malware code is hidden in the task names and is constructed using several layers of compression and base64 decoding.

The actual malware uses the task name from these "never occurring crontab". The invalid date is just a kind of signature.

4llan··on Assembly Language for Beginners [pdf]
Fun fact: both books have precisely the same content
4llan··on The Stuxnet worm may be the most sophisticated software ever written
"Zero Days" documentary is focused on Stuxnet. https://www.imdb.com/title/tt5446858/
4llan··on My account is sending spam emails
I have this problem with my Hotmail/Outlook account for almost 5 years and Microsoft team don't even understand what's going on. - https://answers.microsoft.com/en-us/outlook_com/forum/oemail...
4llan··on Updates to our Google Voice apps
They just don't admit how hard did they failed in communications apps. Clearly priority and focus issues.