Computer Viruses and Malware phần 3 ppt

Computer Viruses and Malware phần 3 ppt

Computer Viruses and Malware phần 3 ppt

... diverge. 42 COMPUTER VIRUSES AND MALWARE start: rl = 12 r2 = 34 r3 = rl + r2 => LI: r2 = 34 goto L2 start: rl = 12 goto LI L2: r3 = rl + r2 The instructions executed, and their ... instructions are scattered, and linked together by unconditional jumps: 44 COMPUTER VIRUSES AND MALWARE call SI call S2 SI: rl = 12 r2 = r3 r4 = rl return S2: r...

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Computer Viruses and Malware phần 6 pptx

Computer Viruses and Malware phần 6 pptx

... an attacker: 108 COMPUTER VIRUSES AND MALWARE 114 Hasson [ 139 ] andCrackZ [81]. 115 See Rosenberg [268] for more information on this and single-stepping. 116 Hasson [ 139 ]. 117 Pless [254] ... Integer overflows, where a value "wraps around." For example, 30 000 + 30 000 = -5 536 . 118 COMPUTER VIRUSES AND MALWARE NOP NOP NOP shellcode fake-stack-frame...

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Computer Viruses and Malware phần 8 ppt

Computer Viruses and Malware phần 8 ppt

... self-stopping worms in great detail. 111 Hindocha and Chien [142]. 112 Nazarioetal. [ 230 ]. 1 13 Hypponen [150]. 154 COMPUTER VIRUSES AND MALWARE • Valid IP addresses. The worm can gather ... back each second, and hosts are given one credit after having a zero balance for four seconds [276]. 13 One vendor calls this shunning [ 73] . 152 COMPUTER VIRUSES AND...

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Computer Viruses and Malware phần 1 pps

Computer Viruses and Malware phần 1 pps

... 2006925091 Computer Viruses and Malware by John Aycock, University of Calgary, AB, Canada ISBN- 13: 978-0 -38 7 -30 236 -2 ISBN-10: 0 -38 7 -30 236 -0 e-ISBN- 13: 978-0 -38 7 -34 188-0 e-ISBN-10: 0 -38 7 -34 188-9 ... infections 29 3. 2 Prepending virus 31 3. 3 Appending virus 31 3. 4 Concept in action 34 3. 5 Encrypted virus pseudocode 35 3. 6 Fun with NTFS alternat...

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Computer Viruses and Malware phần 2 ppsx

Computer Viruses and Malware phần 2 ppsx

... Book II [33 6]. 1 03 Anderson [12]. 104 A sidebar in Harley et al. [ 137 , page 60] has an amusing collection of suggested plural forms that didn't make the cut. 105 Benford [33 ] and Gerrold ... [46]. 111 Vossen [33 8] and van het Groenewoud [33 1], respectively. 112 This definition of spy ware and adware follows Gordon [124]. 1 13 Walker wrote a letter to Dewdne...

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Computer Viruses and Malware phần 4 pps

Computer Viruses and Malware phần 4 pps

... polymorphic viruses. A histogram can also be used to detect metamorphic viruses by comparing the emulation histogram to histograms of known metamorphic viruses. ^^^ 64 COMPUTER VIRUSES AND MALWARE ... hash table 80 COMPUTER VIRUSES AND MALWARE Static heuristics • Pro: Static heuristic analysis detects both known and unknown viruses. • Con: False positives are a...

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Computer Viruses and Malware phần 5 ppsx

Computer Viruses and Malware phần 5 ppsx

... Mann [1 93] . 177 Bontchev [46]. 102 COMPUTER VIRUSES AND MALWARE Push 1 23 Pop 1 23 Still 1 23? Normal execution sp—•J 1 23 sp—• 1 23 sp—H 1 23 5^ time Single- stepping sp—•• 1 23 sp—• ... example, Navarro and Tarhio [228]. 120 For example, Pennello [245]. 121 Bentley [34 ]. 122 Gryaznov [ 133 ], Symantec [30 7], and Zenkin [35 4]. 1 23 Gryazn...

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Computer Viruses and Malware phần 7 potx

Computer Viruses and Malware phần 7 potx

... al. [126], Gragg [127], and Granger [128]. 150 COMPUTER VIRUSES AND MALWARE 136 .159 University of Calgary network Computer Science subnet Specific computer on subnet Figure ... single command. And was, in the case from which the above 138 COMPUTER VIRUSES AND MALWARE hoax around, perceiving the purported threat as a way to justify an increase...

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Computer Viruses and Malware phần 9 doc

Computer Viruses and Malware phần 9 doc

... 109 Aycock and Friess [ 23] . 110 Schneier [279]. 111 This section is based on Young and Yung [35 2]. 112 Bogeholz [37 ] and Vidstrom [33 5]. 1 13 Bates [29] andFerbrache [1 03] . 114 Panda Labs ... [276]. 121 ChenandRanka[62]. 122 Matrawyetal. [197]. 1 23 Chen and Heidemann [ 63] . 124 Whyteetal. [34 5]. 125 Foulkes and Morris [115] and Oudot [ 234 ]. 126 Ch...

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