NEVERQUEST, virusul considerat cel mai mare pericol de pe internet!

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NEVERQUEST, virusul considerat cel mai mare pericol de pe internet! - virustrojanerkeylogger-1386152118.jpg

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Răspândit prin media socială, email sau protocoale de transfer de fișiere, Neverquest are capacitatea de a recunoaște câteva sute de instrumente de banking online sau site-uri financiare care implică tranzacții online. Neverquest iese din hibernare atunci când utilizatorul unui sistem infectat inițiază o sesiune de logare pe unui din site-urile vizate de către creatorii săi. Virusul se activează, preia controlul asupra conexiunii dintre browser și server, înregistrând datele introduse de client și transferându-le unui server dedicat, pentru stocare.


Ulterior acestei acțiuni, atacatorul se loghează în contul clientului chiar de pe sistemul infectat, prin intermediul protocoalelor Virtual Network Computing (VPC).   VPC este un sistem comandă la distanță, de partajare în rețea a ecranelor desktop-urilor, comenzile executate prin intermediul tastaturii sau mouse-ului fiind transmise de la un sistem la altul.
Logarea făcându-se chiar de pe sistemul infectat, serverul instituției financiare nu sesizează niciun parametru diferit față de cei ai clientului legitim al contului, validând conexiunea.


Pentru a ascunde urmele care ar putea să le dezvăluie identitatea, atacatorii folosesc sistemele infectate pentru a muta de mai multe ori dintr-un cont în altul sumele de bani subtilizate. 


Experții în securitate informatică avertizează asupra faptului că Neverquest este extrem de dificil de identificat de către programele antivirus, creatorii lui invalidând aproape toate metodele prin care activitatea sa ar putea fi întreruptă. Malware-ul conține și o rutină prin care caută cuvinte-cheie relaționate mediului financiar chiar în timp ce utilizatorul computerului infectat navighează pe internet. Dacă pagina încărcată conține unul dintre aceste cuvinte-cheie, virusul se activează și începe interceptarea comunicațiilor. Dacă punctul final al acestei navigări este site-ul unei instituții financiare, noul site este adăugat automat listei care declanșează activitatea virusului, update-ul fiind transmis apoi tuturor sistemelor infectate.


Kaspersky Lab, pe blogul căruia a apărut anunțul despre aceast nou pericol cibernetic, estimează că până în prezent au fost infectate câteva zeci de mii de sisteme la nivel mondial, dar că potențialul de creștere este mare odată cu apropierea sărbătorilor de iarnă, avându-se în vedere eficiența de penetrare și versatilitatea auto-replicării acestui virus.


Kaspersky spune că a identificat cel puțin un forum undergroud pe care virusul se află de vânzare și că după primele studii se pare că afectează doar utilizatorii browsere-lor Mozilla Firefox și Internet Explorer, cel puțin până în acest moment.


Protecția împotriva acestei noi amenințări informatice cere mult mai mult decât activitatea unui antivirus, utilizatorii au nevoie de soluții dedicate prin care tranzacțiile financiare online să fie securizate. În mod particular, soluția trebuie să aibă posibilitatea de a controla procesele care rulează în timpul activității unui browser și să prevină manipularea acestora de către alte aplicații.


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