My hoster updated the Linux kernel on my Debian system to 2.6.18-028stab070.5. After the update it wasn't possible to connect by ssh anymore.
Booted the system in recovery mode. /var/log/auth.log showed the following errors:
error writing /proc/self/oom_adj: Operation not permitted error: Bind to port 22 on a.b.c.d failed: Cannot assign requested address. fatal: Cannot bind any address.
The following changes fixed the problem:
/etc/defaults/ssh:
Here’s a nice paper about obfuscation techniques used for JavaScript:
“Malware with your Mocha? Obfuscation and antiemulation tricks in malicious JavaScript.”
http://www.sophos.com/security/technical-papers/malware_with_your_mocha.html
Here's a nice comparison of hex editors:
http://blogs.sans.org/computer-forensics/2010/09/29/hex-editors-for-malware-analysis/
Nice post about the Zeus C&C server:
http://xs-sniper.com/blog/2010/09/27/turning-the-tables/
Reboot. On the console do a fix-vesa. That's it.
See also: http://www.backtrack-linux.org/forums/backtrack-fixes/8-cant-get-resolution-go-beyond-1024×768-backtrack-vm-image.html
Nice post about network device discovery:
http://securitylifer.blogspot.com/2010/09/detecting-live-hosts-on-target-network.html
Nice post about OsExec:
http://www.windowsecurity.com/articles/PsExec-Nasty-Things-It-Can-Do.html
Nice post about limiting the number of processes an executable might spawn:
http://blog.didierstevens.com/2010/09/13/runinsidelimitedjob/
Top 24 replies by programmers when their programs don’t work:
http://testavimas.blogspot.com/2008/09/testers-day.html
Nice blog post about gathering information using SNMP:
http://www.attackvector.org/compromising-hosts-with-snmp/