Statefull Packer Inspection against any kind of Malware!

[ricudis at itc.auth.gr]

>> Sto linux tha mporouse na ginei implemented kati paromoio se morfi
>> software
>> omws px me to iptables i einai entelows adynato?
>
> Áäýíáôïí äåí åßíáé.  Ï Óôáóéíüðïõëïò óïõ åîÞãçóå ðåñßðïõ (ü÷é åðåéäÞ äåí
> Þîåñå ðåñéóóüôåñåò ëåðôïìÝñåéåò, áëëÜ åðåéäÞ âáñÝèçêå íá ãñÜöåé) ðùò
> ãßíåôáé.  ÁðëÜ ôï hardware ðïõ èá ÷ñåéáæüóïõí ãéá íá êÜíåéò êÜôé ôÝôïéï
> ãéá
> Ýíá ìÝóï õðïëïãéóôÞ äå ìåôñéÝôáé óå ìç÷áíÞìáôá... ìåôñéÝôáé óå ïñüöïõò
> ãåìÜôïõò ìå clusters ðáñÜëëçëùí õðåñõðïëïãéóôþí.

Kala re paidia, toso expensive operation einai pia to signature matching?

To clamd mou kanei 2msec gia na elegksei ena 1500 bytes file against 22k
signatures - oso to typical RTT se ena 10ri ethernet diktyo. An ypo8esoume
oti exeis specialized hardware gi ayth th douleia, periorizeis ta
signatures stous current ious (de me noiazei na elegxw pia gia to PIXEL
virus) kai to syndiaseis me ena psiloeksypno state machine (de me
endiaferei na elegxw ka8e paketo apo ena mp3 h avi file poy erxetai apo to
kazaa) nomizw oti mporeis na meiwseis to latency se PSILOanekta oria.

Ola ayta einai sketh 8ewria, bebaia.