Re[2]: 02.04.2008-16:53:33 :: Something smarter than us is going to emerge


node:	Re[2]: 02.04.2008-16:53:33
template:	4
parent:	Re: 02.04.2008-16:53:33
owner:	mr gramma
viewed by:
created:	04.04.2008 - 23:48:33

cwbe coordinatez:
101
63540
63542
2109677
1857521
3850568
3850917
3858476

ABSOLUT
KYBERIA

permissions
you:	r,
system:	public
net:	yes

ja v tom nevidim az taky problem, sak jadro je unixovske tim padom je setko unixovske a pre unix moc viri neficia, mozno nejake rootkity... take trapne virusi typu "i love you" pre os x asik nebudu... alebo uz vies o niecom konkretnom ?

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nie je problem na hociaky system napisat virus, otazka je, ci sa ma vobec sancu sirit, kedze pocet pouzivatelov macov a linuxov je stale minorita :)

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hm v serverovom sektore lunex predca vedie?! napriklad staci povedat LAMP :)

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aky ma zmysel pisat virus na server? nie je tam user ktory na to 2x klikne s dementnym vyrazom "co to jeeeeee?"

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jaky ma voubec zmysel pisat virus okrem toho ze nasrat uzivatela a mastenia si ega :) ale niektore windowz virusi boli len preto mozne lebo kazdy uzivatel pracuj ako uzivatel s admin pravami a toto moc pod mac os X alebo unixom ako takim ide aj bez toho aby si bol root, teda normalna praca ;)

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virusy sa uz davno nepisu koli egu. a kto povedal ze potrebujs admin prava aby si robil zle?:)

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hm okej ale pod unixom tomu hovorim rootkits a nie virusi, nevedel som ze to nerozdelujes :)

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rootkity maju jasnu definiciu..
A rootkit is a program (or combination of several programs) designed to take fundamental control (in Unix terms "root" access, in Windows terms "Administrator" access) of a computer system, without authorization by the system's owners and legitimate managers. ... but in recent years have been largely malware to help intruders gain access to systems while avoiding detection. (wikipedia)
ja hovorim o tom, ze aj s user-pravami mozes narobit dost zle, bez toho aby si toho roota musel mat.
staci ti, ak pustis nejaky evil kod na pozadi, ktory bude dajme tomu pocuvat na nejakom vysokom porte, alebo sa pripoji na nejaku ipcku z ktorej bude prijimat prikazy. nemusis mat cely system na to aby si ho mohol zneuzit. takto mozes v pohode kurit plny vykon zo stroja len pre seba, alebo vyuzivat konektivitu na rozosielanie spamu, robenie DDoS utokov...

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naopak dolezita vec pri definovani virusu je fakt, ze sa vie replikovat, co na linuxe/OSX je vcelku problem

v DOSe/windowse ma user pravo zapisovat takmer vsade, kedze je bud admin, alebo power user (hovorim o SOHO desktopoch). naopak v linuxe pod beznym userom zvacsa nemas sancu menit systemove nastavenia, libky a pod.

podla mna jeden z dolezitych faktorov mensieho sirenia virusov na linuxe je aj to, ze sa tam pouziva radovo menej executable warezu.

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pokym ide o binarky programov, tie samozrejme infikovat nevie, ale naco aj, ked sa vie poslat dalej cez mail.. uz davno som nevidel virus co by ti zacal prepisovat systemove subory, to sa uz nejak nenosi :) vacsinou je to teraz malware, ktory sa siri cez mail/IM. a citat contact list v mailovom programe(thunderbird/evolution/whatever) tiez nie je problem..

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prepisovanie systemovych suborov na windowse je stale bezna praktika
ale suhlasim, ze sirenie cez mail/IM je dneska podstatne beznejsie.

social engineering rulez, ked uz spolocnosti ako-tak popatchovali operacne systemy, diery su stale medzi klavesnicou a stolickou :)