1.二维码获取：

HOOK:5D940000+20517A 5DB4517A
CALL:5D940000+636CF0

特征码：FF 30 E8 ?? ?? ?? ??

5DB4514F CC int3
5DB45150 55 push ebp
5DB45151 8BEC mov ebp,esp
5DB45153 56 push esi
5DB45154 68 D8F3415F push WeChatWi.5F41F3D8
5DB45159 8BF1 mov esi,ecx
5DB4515B E8 20F6FFFF call WeChatWi.5DB44780
5DB45160 68 9CB9395F push WeChatWi.5F39B99C ; @memo:
5DB45165 8BCE mov ecx,esi
5DB45167 E8 14F6FFFF call WeChatWi.5DB44780
5DB4516C 8B45 08 mov eax,dword ptr ss:[ebp+0x8]
5DB4516F 8D8E BC0A0000 lea ecx,dword ptr ds:[esi+0xABC]
5DB45175 FF70 04 push dword ptr ds:[eax+0x4]
5DB45178 FF30 push dword ptr ds:[eax]
5DB4517A E8 711B4300 call WeChatWi.5DF76CF0 ; 二维码HOOK地址
5DB4517F 5E pop esi
5DB45180 5D pop ebp
5DB45181 C2 0400 retn 0x4

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