WeChatFerry/spy/get_contacts.cpp
2023-05-26 00:19:08 +08:00

91 lines
2.5 KiB
C++

#pragma execution_character_set("utf-8")
#include "get_contacts.h"
#include "load_calls.h"
#include "util.h"
extern WxCalls_t g_WxCalls;
extern DWORD g_WeChatWinDllAddr;
#define FEAT_LEN 5
static const uint8_t FEAT_COUNTRY[FEAT_LEN] = { 0xA4, 0xD9, 0x02, 0x4A, 0x18 };
static const uint8_t FEAT_PROVINCE[FEAT_LEN] = { 0xE2, 0xEA, 0xA8, 0xD1, 0x18 };
static const uint8_t FEAT_CITY[FEAT_LEN] = { 0x1D, 0x02, 0x5B, 0xBF, 0x18 };
static DWORD FindMem(DWORD start, DWORD end, const void *target, size_t len)
{
uint8_t *p = (uint8_t *)start;
while ((DWORD)p < end) {
if (memcmp((void *)p, target, len) == 0) {
return (DWORD)p;
}
p++;
}
return 0;
}
static string GetCntString(DWORD start, DWORD end, const uint8_t *feat, size_t len)
{
DWORD pfeat = FindMem(start, end, feat, len);
if (pfeat == 0) {
return "";
}
DWORD lfeat = GET_DWORD(pfeat + len);
if (lfeat <= 2) {
return "";
}
return Wstring2String(wstring(GET_WSTRING_FROM_P(pfeat + FEAT_LEN + 4), lfeat));
}
vector<RpcContact_t> GetContacts()
{
vector<RpcContact_t> contacts;
DWORD call1 = g_WeChatWinDllAddr + g_WxCalls.contact.base;
DWORD call2 = g_WeChatWinDllAddr + g_WxCalls.contact.head;
int success = 0;
DWORD *addr[3] = { 0, 0, 0 };
__asm {
pushad
call call1
lea ecx,addr
push ecx
mov ecx,eax
call call2
mov success,eax
popad
}
DWORD pstart = (DWORD)addr[0];
DWORD pend = (DWORD)addr[2];
while (pstart < pend) {
RpcContact_t cnt;
DWORD pbin = GET_DWORD(pstart + 0x150);
DWORD lenbin = GET_DWORD(pstart + 0x154);
cnt.wxid = GetStringByAddress(pstart + g_WxCalls.contact.wxId);
cnt.code = GetStringByAddress(pstart + g_WxCalls.contact.wxCode);
cnt.remark = GetStringByAddress(pstart + g_WxCalls.contact.wxRemark);
cnt.name = GetStringByAddress(pstart + g_WxCalls.contact.wxName);
cnt.country = GetCntString(pbin, pbin + lenbin, FEAT_COUNTRY, FEAT_LEN);
cnt.province = GetCntString(pbin, pbin + lenbin, FEAT_PROVINCE, FEAT_LEN);
cnt.city = GetCntString(pbin, pbin + lenbin, FEAT_CITY, FEAT_LEN);
if (pbin == 0) {
cnt.gender = 0;
} else {
cnt.gender = (DWORD) * (uint8_t *)(pbin + g_WxCalls.contact.wxGender);
}
contacts.push_back(cnt);
pstart += 0x438;
}
return contacts;
}