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Blocking lists of IP addresses using the iptables recent module or ipset and make fail2ban use it.

Posted 04-21-2013 at 08:25 AM by unSpawn
Updated 04-21-2013 at 09:34 AM by unSpawn (//Suggest saving the current rule set)

To combat the common misconception that filling Netfilters filter table INPUT chain is still a valid choice, to show ease of use and for future reference I'll outline how to mass block IP(v4) addresses and how to integrate this in fail2ban.

*This web log post will not explain the fine print on ipset and iptables' {ipt,xt}_recent ('iptables -m recent --help'), nor will it tell you how to install anything, help you configure fail2ban, go into SysV vs BSD init scripts or application...
Posted in Uncategorized
Views 3429 Comments 0 unSpawn is offline
Rating: 2 votes, 4.50 average.

Simple ClamAV sig for /lib64/ contents

Posted 02-16-2013 at 03:26 PM by unSpawn
Updated 02-17-2013 at 08:03 AM by unSpawn

Wrt SSHD Rootkit Rolling around.

*I updated RKH in CVS but detection wasn't added yet to ClamAV, Securiteinfo or R-fx MLD:
]$ clamscan --official-db-only=no -d ./securiteinfoelf.hdb -d ./securiteinfosh.hdb -d ./rfxn.hdb -d ./rfxn.ndb -d ./RKH_libkeyutils.ldb -r --infected -r $PWD
path01/ FOUND
path02/ FOUND
Attached Files
File Type: txt RKH_libkeyutils.ldb.txt (195 Bytes, 14 views)
Posted in Uncategorized
Views 1996 Comments 0 unSpawn is offline

Bash logging patches

Posted 06-12-2012 at 01:25 PM by unSpawn

Over the years we've seen quite a few "I want to log everything" questions asked for which I listed some pointers a while ago in several posts. To complement a recent "I want to capture all the operations performed in the terminal" question (thread: How to Capture a Unix Terminal Session?) I looked for Bash patches. Long story short: Bash 4 can be compiled with syslog support but still that shell will run as the user who logs in AFAIK. (So depending on your requirements for coverage...
Posted in Uncategorized
Views 3069 Comments 0 unSpawn is offline

Rootkit Hunter reissue of 1.4.0 release (ALLOWDEVFILE)

Posted 05-01-2012 at 12:02 PM by unSpawn

Please note we've found an error with usage of exclamation points in an ALLOWDEVFILE check.
We have corrected this and have reissued 1.4.0.

NEW RELEASE SHA1: 48798beec504c00af93bf64b6e35dfc7d7aaff07
old release SHA1: 22546370647b79abce783d2a2d29352843d1b617

Apologies for the inconvenience,
Posted in Uncategorized
Views 1139 Comments 0 unSpawn is offline

Rootkit Hunter release 1.4.0

Posted 04-30-2012 at 08:11 PM by unSpawn
Updated 04-30-2012 at 08:12 PM by unSpawn

Rootkit Hunter 1.4.0 release is here thanks to John Horne and all contributors who provided code, submitted ideas, bugs, fixes, documentation, helped out on the rkhunter-users mailing list and promoted Rootkit Hunter.


- Added the '--list propfiles' command-line option. This will dump out the list of filenames that will be searched for when building the file properties database. By default the list is not shown if just '--list' is used.
- Added Jynx rootkit...
Posted in Uncategorized
Views 1073 Comments 0 unSpawn is offline


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