joyce8/EMBER2024-capa huggingface dataset:
Function at 0x54bdf0
Capabilities:
Check mutex on windows

Disassembly:
sub esp, 0x20
push ebx
push ebp
mov ebp, ecx
push esi
push edi
lea ecx, [esp + 0x1c]
lea eax, [esp + 0x1c]
push 1
push ecx
mov dword [esp + 0x18], 0xc
mov dword [esp + 0x1c], eax
mov dword [esp + 0x20], 0
xor edi, edi
call dword [sym.imp.ADVAPI32.dll_InitializeSecurityDescriptor]
test eax, eax
je 0x54be3b
push edi
push edi
lea edx, [esp + 0x24]
push 1
push edx
call dword [sym.imp.ADVAPI32.dll_SetSecurityDescriptorDacl]
test eax, eax
je 0x54be3b
lea edi, [esp + 0x10]
push 0x5dde60
call fcn.00550160
mov ebx, dword [sym.imp.KERNEL32.dll_CreateMutexA]
add esp, 4
push eax
push 0
push edi
call ebx
mov esi, eax
test esi, esi
jne 0x54bea3
push 0x5dde54
call fcn.00550160
add esp, 4
push eax
push esi
push edi
call ebx
mov esi, eax
test esi, esi
jne 0x54bea3
mov esi, dword [sym.imp.KERNEL32.dll_GetLastError]
call esi
call esi
push eax
push 0x5de080
call fcn.00550160
add esp, 4
add ebp, 0x20
push eax
push ebp
call fcn.0054b360
add esp, 0xc
xor eax, eax
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x20
ret 4
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0xb7
jne 0x54beed
mov eax, dword [esp + 0x34]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_WaitForSingleObject]
cmp eax, 0x102
jne 0x54beed
push 0x5de064
call fcn.00550160
add ebp, 0x20
push eax
push ebp
call fcn.0054b360
add esp, 0xc
push esi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
add esp, 0x20
ret 4
push esi
call dword [sym.imp.KERNEL32.dll_ReleaseMutex]
push esi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
pop edi
pop esi
pop ebp
mov eax, 1
pop ebx
add esp, 0x20
ret 4

Function at 0x54bf10
Capabilities:
Check for peb beingdebugged flag

Disassembly:
push ebp
mov ebp, esp
push ecx
mov al, byte [0x881ca1]
test al, al
je 0x54bf23
xor eax, eax
mov esp, ebp
pop ebp
ret
mov al, byte [ecx + 0x1269]
mov dword [ebp - 4], 0
test al, al
je 0x54bf4b
mov eax, dword fs:[0x18]
mov eax, dword [eax + 0x30]
movzx eax, byte [eax + 2]
mov dword [ebp - 4], eax
mov eax, dword [ebp - 4]
mov esp, ebp
pop ebp
ret
xor eax, eax
mov al, byte fs:[0x20]
mov dword [ebp - 4], eax
mov eax, dword [ebp - 4]
mov esp, ebp
pop ebp
ret
Function at 0x54d190
Capabilities:
Query or enumerate registry value

Disassembly:
push 0xffffffffffffffff
push 0x562eeb
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
sub esp, 0x418
push ebx
push edi
lea ecx, [esp + 0x1c]
mov dword [esp + 0x18], 4
mov dword [esp + 0xc], 0
mov dword [esp + 8], 1
call fcn.005505c0
mov ebx, dword [esp + 0x430]
lea eax, [esp + 8]
push eax
push ebx
lea ecx, [esp + 0x24]
mov dword [esp + 0x430], 0
call fcn.00550610
test al, al
jne 0x54d232
mov edi, dword [sym.imp.KERNEL32.dll_GetLastError]
call edi
mov eax, dword [0x881ca4]
test eax, eax
je 0x54d232
push esi
mov esi, dword [esp + 0x420]
call edi
push eax
push esi
push ebx
push 0x5de780
call fcn.00550160
mov ecx, dword [0x881ca4]
add esp, 4
add ecx, 0x20
push eax
push ecx
call fcn.0054b360
add esp, 0x14
pop esi
lea edx, [esp + 0x14]
lea eax, [esp + 0x10]
push edx
push eax
push 0
push 0xf003f
push 0
push 0
push 0
push 0x5de74c
call fcn.00550160
add esp, 4
push eax
push reloc.WS2_32.dll_accept
call dword [sym.imp.ADVAPI32.dll_RegCreateKeyExA]
pop edi
pop ebx
test eax, eax
jne 0x54d2d9
cmp dword [esp + 0xc], 2
jne 0x54d299
mov eax, dword [esp + 0x42c]
lea ecx, [esp + 0x10]
lea edx, [esp + 4]
push ecx
push edx
push 0
push 0
push eax
call fcn.00550160
mov ecx, dword [esp + 0x1c]
add esp, 4
push eax
push ecx
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
mov edx, dword [esp + 8]
push edx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov eax, dword [esp]
mov ecx, dword [esp + 4]
cmp eax, ecx
je 0x54d308
mov edx, dword [0x881ca4]
test edx, edx
je 0x54d33f
push ecx
push eax
push 0x5de734
call fcn.00550160
add esp, 4
push eax
mov eax, dword [0x881ca4]
add eax, 0x20
push eax
jmp 0x54d337
mov ecx, dword [0x881ca4]
test ecx, ecx
je 0x54d304
push eax
push 0x5de71c
call fcn.00550160
mov ecx, dword [0x881ca4]
add esp, 4
add ecx, 0x20
push eax
push ecx
call fcn.0054b360
add esp, 0xc
mov eax, dword [esp]
mov ecx, dword [esp + 0x430]
cmp eax, ecx
je 0x54d36a
mov edx, dword [0x881ca4]
test edx, edx
je 0x54d33f
push ecx
push eax
push 0x5de704
call fcn.00550160
mov edx, dword [0x881ca4]
add esp, 4
add edx, 0x20
push eax
push edx
call fcn.0054b360
add esp, 0x10
lea ecx, [esp + 0x14]
mov dword [esp + 0x420], 0xffffffff
call fcn.00550600
xor al, al
mov ecx, dword [esp + 0x418]
mov dword fs:[0], ecx
add esp, 0x424
ret
lea ecx, [esp + 0x14]
mov dword [esp + 0x420], 0xffffffff
call fcn.00550600
mov ecx, dword [esp + 0x418]
mov al, 1
mov dword fs:[0], ecx
add esp, 0x424
ret
Function at 0x54e3d0
Capabilities:
Delete registry value
Query or enumerate registry value

Disassembly:
sub esp, 0x540
push ebx
lea eax, [esp + 0x33c]
push 0x104
xor bl, bl
push eax
push 0
mov byte [esp + 0x13], bl
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameW]
push 0
push 0
lea ecx, [esp + 0x13c]
push 0x104
lea edx, [esp + 0x348]
push ecx
push edx
call fcn.00552768
add esp, 4
inc eax
push eax
lea eax, [esp + 0x350]
push eax
push 0
push 0
call dword [sym.imp.KERNEL32.dll_WideCharToMultiByte]
lea ecx, [esp + 0x134]
push 0x5c
push ecx
call fcn.005548ca
add esp, 8
test eax, eax
je 0x54e43f
mov byte [eax], bl
lea edx, [esp + 8]
push edx
push 3
push 0
push 0x5dea10
call fcn.00550160
add esp, 4
push eax
push reloc.WS2_32.dll_accept
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
test eax, eax
jne 0x54e5b4
push ebp
mov edx, dword [esp + 0xc]
push eax
push eax
mov ebx, dword [sym.imp.ADVAPI32.dll_RegEnumValueA]
push eax
push eax
lea eax, [esp + 0x20]
lea ecx, [esp + 0x44]
push eax
push ecx
push 0
push edx
mov dword [esp + 0x30], 0x104
mov ebp, 1
call ebx
cmp eax, 0x103
je 0x54e59c
push esi
push edi
test eax, eax
jne 0x54e56a
lea edi, [esp + 0x3c]
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
lea edx, [esp + 0x244]
mov eax, ecx
mov esi, edi
mov edi, edx
push 0x5c
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, eax
and ecx, 3
rep movsb byte es:[edi], byte [esi]
lea ecx, [esp + 0x248]
push ecx
call fcn.005548ca
add esp, 8
test eax, eax
je 0x54e4e8
mov byte [eax], 0
lea edx, [esp + 0x140]
lea eax, [esp + 0x244]
push edx
push eax
call fcn.00551b71
add esp, 8
test eax, eax
jne 0x54e56a
lea ecx, [esp + 0x18]
lea edx, [esp + 0x1c]
push ecx
mov ecx, dword [esp + 0x18]
push edx
push eax
push eax
lea eax, [esp + 0x4c]
push eax
push ecx
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
test eax, eax
jne 0x54e56a
mov eax, dword [0x881ca4]
test eax, eax
je 0x54e551
lea edx, [esp + 0x1c]
push edx
push 0x5de9f8
call fcn.00550160
add esp, 4
push eax
mov eax, dword [0x881ca4]
add eax, 0x20
push eax
call fcn.0054b360
add esp, 0xc
mov edx, dword [esp + 0x14]
lea ecx, [esp + 0x3c]
push ecx
push edx
call dword [sym.imp.ADVAPI32.dll_RegDeleteValueA]
test eax, eax
jne 0x54e56a
mov byte [esp + 0x13], 1
push 0
push 0
push 0
lea ecx, [esp + 0x24]
push 0
lea edx, [esp + 0x4c]
mov eax, ebp
push ecx
push edx
push eax
mov eax, dword [esp + 0x30]
mov dword [esp + 0x34], 0x104
push eax
inc ebp
call ebx
cmp eax, 0x103
jne 0x54e4a1
pop edi
pop esi
mov ecx, dword [esp + 0xc]
push ecx
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov al, byte [esp + 0xb]
pop ebp
pop ebx
add esp, 0x540
ret
mov al, bl
pop ebx
add esp, 0x540
ret
Function at 0x54e5c0
Capabilities:
Set registry value

Disassembly:
push ecx
lea eax, [esp]
push ebx
push eax
push 0xf003f
push 0
push 0x5dea70
xor bl, bl
call fcn.00550160
add esp, 4
push eax
push reloc.WS2_32.dll_bind
call dword [sym.imp.ADVAPI32.dll_RegOpenKeyExA]
test eax, eax
jne 0x54e621
lea ecx, [esp + 0xc]
push 4
push ecx
push 4
push eax
push 0x5dea58
call fcn.00550160
mov edx, dword [esp + 0x18]
add esp, 4
push eax
push edx
call dword [sym.imp.ADVAPI32.dll_RegSetValueExA]
test eax, eax
jne 0x54e616
mov bl, 1
mov eax, dword [esp + 4]
push eax
call dword [sym.imp.ADVAPI32.dll_RegCloseKey]
mov al, bl
pop ebx
pop ecx
ret
Function at 0x54e6b0
Capabilities:
Copy file
Get common file path
Parse pe header
Read file on windows
Write file on windows

Disassembly:
sub esp, 0x240
push ebx
mov ebx, ecx
push esi
push edi
cmp dword [ebx], 0
je 0x54e6c5
call fcn.0054e870
push ebp
lea eax, [esp + 0x14c]
push 0x104
push eax
call dword [sym.imp.KERNEL32.dll_GetSystemDirectoryA]
mov edi, 0x5ddd4c
or ecx, 0xffffffff
xor eax, eax
lea edx, [esp + 0x14c]
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov esi, edi
mov ebp, ecx
mov edi, edx
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
mov ecx, ebp
dec edi
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, ebp
lea edx, [esp + 0x14c]
and ecx, 3
rep movsb byte es:[edi], byte [esi]
mov edi, dword [esp + 0x254]
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov esi, edi
mov ebp, ecx
mov edi, edx
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
mov ecx, ebp
dec edi
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, ebp
and ecx, 3
rep movsb byte es:[edi], byte [esi]
lea esi, [ebx + 4]
push esi
push 0x104
call dword [sym.imp.KERNEL32.dll_GetTempPathA]
push esi
push 0
push 0x5deac4
push esi
call dword [sym.imp.KERNEL32.dll_GetTempFileNameA]
push 0
lea eax, [esp + 0x150]
push esi
push eax
call dword [sym.imp.KERNEL32.dll_CopyFileA]
push 0
push 0x80
push 3
push 0
push 3
push 0xc0000000
push esi
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov edi, eax
cmp edi, 0xffffffff
je 0x54e823
lea ecx, [esp + 0x10]
push 0
push ecx
lea edx, [esp + 0x1c]
push 0x40
push edx
push edi
call dword [sym.imp.KERNEL32.dll_ReadFile]
cmp word [esp + 0x14], 0x5a4d
jne 0x54e81c
mov eax, dword [esp + 0x50]
mov ebp, dword [sym.imp.KERNEL32.dll_SetFilePointer]
push 0
push 0
push eax
push edi
call ebp
lea ecx, [esp + 0x10]
push 0
push ecx
lea edx, [esp + 0x5c]
push 0xf8
push edx
push edi
call dword [sym.imp.KERNEL32.dll_ReadFile]
cmp dword [esp + 0x54], 0x4550
jne 0x54e81c
cmp dword [esp + 0x88], 0x80000000
jbe 0x54e81c
mov eax, dword [esp + 0x50]
push 0
push 0
push eax
push edi
mov dword [esp + 0x98], 0x10000000
call ebp
lea ecx, [esp + 0x10]
push 0
push ecx
lea edx, [esp + 0x5c]
push 0xf8
push edx
push edi
call dword [sym.imp.KERNEL32.dll_WriteFile]
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov edi, dword [sym.imp.KERNEL32.dll_LoadLibraryExA]
push 8
push 0
push esi
call edi
test eax, eax
mov dword [ebx], eax
pop ebp
je 0x54e848
pop edi
pop esi
mov eax, 1
pop ebx
add esp, 0x240
ret 4
mov eax, dword [esp + 0x250]
push 8
push 0
push eax
mov byte [esi], 0
call edi
xor ecx, ecx
pop edi
test eax, eax
setne cl
mov dword [ebx], eax
pop esi
mov eax, ecx
pop ebx
add esp, 0x240
ret 4
Function at 0x54f800
Capabilities:
Write file on windows

Disassembly:
sub esp, 0x148
push ebx
push ebp
mov ebp, ecx
mov ebx, dword [ebp + 4]
cmp ebx, 0xffffffff
jne 0x54f81f
pop ebp
xor al, al
pop ebx
add esp, 0x148
ret 0xc
mov edx, dword [esp + 0x158]
mov ecx, dword [esp + 0x154]
push esi
mov esi, dword [esp + 0x160]
push edi
mov edi, dword [ebp + 0xc]
cmp edx, 0x613
mov dword [esp + 0x14], ecx
mov dword [esp + 0x1c], edx
mov dword [esp + 0x18], edi
mov dword [esp + 0x20], esi
jne 0x54f8ba
push esi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
inc eax
cmp eax, 0x104
mov dword [esp + 0x20], eax
jbe 0x54f874
mov eax, 0x104
mov byte [esi + 0x103], 0
mov dword [esp + 0x20], eax
mov ecx, dword [esp + 0x14]
mov edx, dword [esp + 0x18]
mov dword [esp + 0x44], ecx
mov ecx, dword [esp + 0x1c]
mov dword [esp + 0x4c], ecx
mov ecx, eax
mov dword [esp + 0x48], edx
mov edx, ecx
lea edi, [esp + 0x54]
mov dword [esp + 0x50], eax
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, edx
push 0
and ecx, 3
add eax, 0x10
rep movsb byte es:[edi], byte [esi]
lea ecx, [esp + 0x14]
lea edx, [esp + 0x48]
push ecx
push eax
mov eax, dword [ebp + 4]
push edx
push eax
jmp 0x54f915
cmp edx, 0x619
jne 0x54f906
mov eax, 0x10
mov dword [esp + 0x2c], edx
mov edx, dword [esi + 4]
mov dword [esp + 0x20], eax
mov dword [esp + 0x24], ecx
mov ecx, dword [esi]
mov dword [esp + 0x30], eax
mov eax, dword [esi + 8]
mov dword [esp + 0x38], edx
lea edx, [esp + 0x10]
mov dword [esp + 0x34], ecx
mov ecx, dword [esi + 0xc]
mov dword [esp + 0x3c], eax
push 0
push edx
lea eax, [esp + 0x2c]
push 0x20
mov dword [esp + 0x34], edi
mov dword [esp + 0x4c], ecx
push eax
jmp 0x54f914
lea ecx, [esp + 0x10]
push 0
push ecx
lea edx, [esp + 0x1c]
push 0x10
push edx
push ebx
call dword [sym.imp.KERNEL32.dll_WriteFile]
pop edi
pop esi
test eax, eax
jne 0x54f945
call dword [sym.imp.KERNEL32.dll_GetLastError]
cmp eax, 0x6d
je 0x54f938
cmp eax, 0xe8
je 0x54f938
cmp eax, 6
jne 0x54f945
pop ebp
xor al, al
pop ebx
add esp, 0x148
ret 0xc
pop ebp
mov al, 1
pop ebx
add esp, 0x148
ret 0xc
Function at 0x54fa50
Capabilities:
Create pipe
Create two anonymous pipes

Disassembly:
sub esp, 0x10
push ebx
push ebp
push esi
mov esi, ecx
mov ecx, dword [esi + 4]
push edi
lea eax, [esi + 4]
cmp ecx, 0xffffffff
mov dword [esp + 0x10], eax
je 0x54fa72
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov ebp, dword [sym.imp.KERNEL32.dll_GetStdHandle]
push 0xfffffffffffffff5
mov dword [esp + 0x18], 0xc
mov dword [esp + 0x20], 1
mov dword [esp + 0x1c], 0
call ebp
mov dword [esi + 0x134], eax
lea eax, [esp + 0x14]
lea ebx, [esi + 0x144]
push 0
lea edi, [esi + 0x140]
push eax
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_CreatePipe]
test eax, eax
jne 0x54fac3
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov ecx, dword [ebx]
push ecx
push 0xfffffffffffffff5
call dword [sym.imp.KERNEL32.dll_SetStdHandle]
test eax, eax
jne 0x54fadc
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov ebx, dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push 2
push 0
lea edx, [esi + 8]
push 0
push edx
call ebx
push eax
mov eax, dword [edi]
push eax
call ebx
push eax
call dword [sym.imp.KERNEL32.dll_DuplicateHandle]
test eax, eax
jne 0x54fb09
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov ecx, dword [edi]
push ecx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push 0xfffffffffffffff6
call ebp
lea edx, [esp + 0x14]
mov dword [esi + 0x130], eax
lea edi, [esi + 0x13c]
push 0
add esi, 0x138
push edx
push edi
push esi
call dword [sym.imp.KERNEL32.dll_CreatePipe]
test eax, eax
jne 0x54fb45
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov eax, dword [esi]
push eax
push 0xfffffffffffffff6
call dword [sym.imp.KERNEL32.dll_SetStdHandle]
test eax, eax
jne 0x54fb5e
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov ecx, dword [esp + 0x10]
push 2
push 0
push 0
push ecx
call ebx
mov edx, dword [edi]
push eax
push edx
call ebx
push eax
call dword [sym.imp.KERNEL32.dll_DuplicateHandle]
test eax, eax
jne 0x54fb86
pop edi
pop esi
pop ebp
xor al, al
pop ebx
add esp, 0x10
ret
mov eax, dword [edi]
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
pop edi
pop esi
pop ebp
mov al, 1
pop ebx
add esp, 0x10
ret

Function at 0x54fba0
Capabilities:
Create thread

Disassembly:
push ecx
push esi
mov esi, ecx
push edi
cmp dword [esi + 4], 0xffffffff
jne 0x54fbb1
pop edi
xor eax, eax
pop esi
pop ecx
ret
mov eax, dword [esi + 0x130]
mov edi, dword [sym.imp.KERNEL32.dll_SetStdHandle]
push eax
push 0xfffffffffffffff6
call edi
test eax, eax
jne 0x54fbca
pop edi
pop esi
pop ecx
ret
mov ecx, dword [esi + 0x134]
push ecx
push 0xfffffffffffffff5
call edi
test eax, eax
jne 0x54fbdd
pop edi
pop esi
pop ecx
ret
push 0
push 0
push 1
push 0
call dword [sym.imp.KERNEL32.dll_CreateEventA]
test eax, eax
mov dword [esi + 0x10], eax
jne 0x54fbf6
pop edi
pop esi
pop ecx
ret
lea edx, [esp + 8]
push edx
push 0
push esi
push 0x54fca0
push 0
push 0
call dword [sym.imp.KERNEL32.dll_CreateThread]
mov ecx, dword [esp + 8]
mov dword [esi], eax
neg eax
sbb eax, eax
pop edi
and eax, ecx
pop esi
pop ecx
ret
Function at 0x54fc20
Capabilities:
Terminate thread

Disassembly:
push esi
mov esi, ecx
cmp dword [esi + 4], 0xffffffff
jne 0x54fc2d
xor al, al
pop esi
ret
mov eax, dword [esi + 0x10]
test eax, eax
je 0x54fc3b
push eax
call dword [sym.imp.KERNEL32.dll_SetEvent]
mov eax, dword [esi]
push edi
mov edi, dword [sym.imp.KERNEL32.dll_CloseHandle]
test eax, eax
je 0x54fc6e
push 0x64
push eax
call dword [sym.imp.KERNEL32.dll_WaitForSingleObject]
cmp eax, 0x102
jne 0x54fc63
mov eax, dword [esi]
push 0
push eax
call dword [sym.imp.KERNEL32.dll_TerminateThread]
mov ecx, dword [esi]
push ecx
call edi
mov dword [esi], 0
mov eax, dword [esi + 4]
cmp eax, 0xffffffff
je 0x54fc80
push eax
call edi
mov dword [esi + 4], 0xffffffff
mov eax, dword [esi + 8]
cmp eax, 0xffffffff
je 0x54fc92
push eax
call edi
mov dword [esi + 8], 0xffffffff
pop edi
mov al, 1
pop esi
ret

Function at 0x550050
Capabilities:
Encode data using xor

Disassembly:
push edi
mov edi, dword [esp + 8]
push edi
call dword [sym.imp.KERNEL32.dll_lstrlenA]
test eax, eax
je 0x5500e7
mov ecx, edi
push ebx
and ecx, 0xff
push esi
mov byte [0x881d71], cl
mov byte [0x881d70], 1
lea edx, [ecx + ecx*2 + 0x65]
lea ecx, [ecx + ecx*2 + 1]
mov dword [esp + 0x10], edx
mov esi, 4
lea ecx, [ecx + ecx*2]
lea edx, [ecx + 0x65]
inc ecx
test eax, eax
jle 0x5500bc
push ebp
sub edi, 0x881d74
mov ebp, eax
mov bl, byte [edi + esi + 0x881d70]
lea ecx, [ecx + ecx*2]
mov al, cl
add al, 0x65
xor bl, al
mov byte [esi + 0x881d70], bl
inc esi
inc ecx
dec ebp
jne 0x5500a0
pop ebp
mov bl, byte [esp + 0x10]
lea ecx, [esi - 4]
mov eax, ecx
mov byte [esi + 0x881d70], 0
sar eax, 8
xor al, bl
xor dl, cl
pop esi
mov byte [0x881d72], al
pop ebx
mov byte [0x881d73], dl
mov eax, 0x881d70
pop edi
ret
mov eax, 0x881d70
pop edi
ret

Function at 0x5500f0
Capabilities:
Encode data using xor

Disassembly:
mov eax, dword [esp + 4]
test eax, eax
jne 0x5500f9
ret
cmp byte [eax], 1
jne 0x550154
movsx ecx, byte [eax + 1]
push ebx
mov bl, byte [eax + 2]
lea ecx, [ecx + ecx*2]
push esi
mov dl, cl
push edi
add dl, 0x65
lea ecx, [ecx + ecx*2 + 3]
xor bl, dl
mov dl, cl
mov byte [eax + 2], bl
mov bl, byte [eax + 3]
add dl, 0x65
xor esi, esi
xor bl, dl
xor edx, edx
mov dh, byte [eax + 2]
inc ecx
mov dl, bl
mov byte [eax + 3], bl
mov edi, edx
test edi, edi
jle 0x55014d
mov bl, byte [esi + eax + 4]
lea ecx, [ecx + ecx*2]
mov dl, cl
add dl, 0x65
xor bl, dl
inc ecx
mov byte [esi + eax], bl
inc esi
cmp esi, edi
jl 0x550136
mov byte [edi + eax], 0
pop edi
pop esi
pop ebx
ret
Function at 0x550160
Capabilities:
Encode data using xor

Disassembly:
mov al, byte [0x881d68]
sub esp, 0x40c
test al, 1
push ebx
push edi
jne 0x550194
mov bl, al
push 0x881ce8
or bl, 1
mov byte [0x881d68], bl
call dword [sym.imp.KERNEL32.dll_InitializeCriticalSection]
push 0x550330
call fcn.00550a75
add esp, 4
mov edi, dword [esp + 0x418]
test edi, edi
jne 0x5501aa
pop edi
xor eax, eax
pop ebx
add esp, 0x40c
ret
push ebp
push esi
push 0x881ce8
call dword [sym.imp.KERNEL32.dll_EnterCriticalSection]
cmp byte [edi], 1
jne 0x55020c
movsx eax, byte [edi + 1]
mov dl, byte [edi + 2]
mov bl, byte [edi + 3]
lea eax, [eax + eax*2]
xor esi, esi
mov cl, al
add cl, 0x65
lea eax, [eax + eax*2 + 3]
xor dl, cl
xor ecx, ecx
mov byte [edi + 2], dl
mov ch, byte [edi + 2]
mov dl, al
add dl, 0x65
xor bl, dl
inc eax
mov cl, bl
mov byte [edi + 3], bl
mov ebp, ecx
test ebp, ebp
jle 0x550208
mov cl, byte [esi + edi + 4]
lea eax, [eax + eax*2]
mov dl, al
add dl, 0x65
xor cl, dl
inc eax
mov byte [esi + edi], cl
inc esi
cmp esi, ebp
jl 0x5501f1
mov byte [edi + ebp], 0
xor ebx, ebx
call dword [sym.imp.KERNEL32.dll_GetCurrentThreadId]
mov edx, 1
mov ecx, 0x881d04
cmp dword [ecx], eax
je 0x550230
add ecx, 4
inc edx
cmp ecx, 0x881d28
jl 0x55021e
jmp 0x550236
test edx, edx
mov ebx, edx
jne 0x550251
mov ecx, dword [0x882170]
cmp ecx, 9
jae 0x550251
inc ecx
mov dword [0x882170], ecx
mov ebx, ecx
mov dword [ecx*4 + 0x881d00], eax
mov esi, dword [ebx*4 + 0x881d28]
mov dword [ebx*4 + 0x881d28], edi
test esi, esi
je 0x55030b
cmp esi, edi
je 0x55030b
cmp byte [edi], 1
je 0x55030b
cmp byte [esi], 1
je 0x55030b
lea edx, [esp + 0x1c]
push esi
push edx
call dword [sym.imp.KERNEL32.dll_lstrcpyA]
lea eax, [esp + 0x1c]
push eax
call dword [sym.imp.KERNEL32.dll_lstrlenA]
test eax, eax
mov dword [esp + 0x18], eax
je 0x55030b
lea ecx, [esp + 0x1c]
mov byte [esi], 1
and ecx, 0xff
mov ebp, 4
mov byte [esi + 1], cl
lea edx, [ecx + ecx*2 + 0x65]
lea ecx, [ecx + ecx*2 + 1]
mov dword [esp + 0x14], edx
xor edx, edx
lea ecx, [ecx + ecx*2]
lea ebx, [ecx + 0x65]
inc ecx
test eax, eax
mov dword [esp + 0x10], ebx
jle 0x5502f1
mov bl, byte [esp + edx + 0x1c]
lea ecx, [ecx + ecx*2]
mov al, cl
add al, 0x65
xor bl, al
mov eax, dword [esp + 0x18]
mov byte [esi + ebp], bl
inc ebp
inc ecx
inc edx
cmp edx, eax
jl 0x5502d2
mov ebx, dword [esp + 0x10]
mov dl, byte [esp + 0x14]
lea eax, [ebp - 4]
mov ecx, eax
mov byte [esi + ebp], 0
sar ecx, 8
xor cl, dl
xor bl, al
mov byte [esi + 2], cl
mov byte [esi + 3], bl
push 0x881ce8
call dword [sym.imp.KERNEL32.dll_LeaveCriticalSection]
pop esi
mov eax, edi
pop ebp
pop edi
pop ebx
add esp, 0x40c
ret

Function at 0x5505c0
Capabilities:
Hash data with crc32

Disassembly:
push ebx
push esi
mov eax, ecx
push edi
xor esi, esi
mov edi, eax
mov edx, esi
mov ebx, 8
test dl, 1
je 0x5505df
shr edx, 1
xor edx, 0xedb88320
jmp 0x5505e1
shr edx, 1
dec ebx
jne 0x5505d0
mov dword [edi], edx
inc esi
add edi, 4
cmp esi, 0x100
jl 0x5505c9
pop edi
pop esi
pop ebx
ret
Function at 0x550610
Capabilities:
Encode data using xor
Read file on windows

Disassembly:
mov eax, 0x1004
call fcn.00554980
mov eax, dword [esp + 0x1008]
push ebp
push esi
mov esi, dword [esp + 0x1014]
test eax, eax
push edi
mov ebp, ecx
mov dword [esi], 0xffffffff
je 0x550715
cmp byte [eax], 0
je 0x550715
push 0
push 0x80
push 3
push 0
push 3
push closesocket
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov edi, eax
cmp edi, 0xffffffff
jne 0x55067c
pop edi
mov dword [ebp + 0x400], 2
pop esi
xor al, al
pop ebp
add esp, 0x1004
ret 8
push ebx
lea eax, [esp + 0x10]
push 0
push eax
lea ecx, [esp + 0x1c]
push 0x1000
push ecx
push edi
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x5506ef
mov ecx, dword [esp + 0x10]
test ecx, ecx
je 0x5506eb
lea ecx, [esp + ecx + 0x14]
lea edx, [esp + 0x14]
cmp edx, ecx
lea eax, [esp + 0x14]
jae 0x5506cd
xor edx, edx
xor ebx, ebx
mov dl, byte [esi]
mov bl, byte [eax]
xor edx, ebx
mov ebx, dword [esi]
shr ebx, 8
mov edx, dword [ebp + edx*4]
xor edx, ebx
inc eax
cmp eax, ecx
mov dword [esi], edx
jb 0x5506b1
lea eax, [esp + 0x10]
push 0
push eax
lea ecx, [esp + 0x1c]
push 0x1000
push ecx
push edi
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
jne 0x550699
jmp 0x5506ef
test eax, eax
jne 0x5506f9
mov dword [ebp + 0x400], 3
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov edx, dword [esi]
pop ebx
not edx
mov dword [esi], edx
pop edi
pop esi
mov al, 1
pop ebp
add esp, 0x1004
ret 8
pop edi
mov dword [ebp + 0x400], 1
pop esi
xor al, al
pop ebp
add esp, 0x1004
ret 8

Function at 0x5508b2
Capabilities:
Get system information on windows

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x4c
push ebx
push esi
push edi
push 4
pop eax
call fcn.00554980
mov esi, esp
push 0x1c
lea eax, [ebp - 0x28]
push eax
push esi
call dword [sym.imp.KERNEL32.dll_VirtualQuery]
test eax, eax
je 0x55094d
mov ebx, dword [ebp - 0x24]
lea eax, [ebp - 0x4c]
push eax
call dword [sym.imp.KERNEL32.dll_GetSystemInfo]
mov ecx, dword [ebp - 0x48]
mov eax, dword [0x882698]
lea edi, [ecx - 1]
not edi
and edi, esi
sub edi, ecx
mov esi, eax
dec esi
neg esi
sbb esi, esi
and esi, 0xfffffff1
add esi, 0x11
imul esi, ecx
add esi, ebx
cmp edi, esi
mov dword [ebp - 8], ecx
jb 0x55094d
cmp eax, 1
je 0x55096e
mov dword [ebp - 4], ebx
mov ebx, 0x1000
push 0x1c
lea eax, [ebp - 0x28]
push eax
push dword [ebp - 4]
call dword [sym.imp.KERNEL32.dll_VirtualQuery]
test eax, eax
je 0x55094d
mov eax, dword [ebp - 0x1c]
add dword [ebp - 4], eax
test dword [ebp - 0x18], ebx
je 0x55091a
test byte [ebp - 0x13], 1
mov eax, dword [ebp - 0x28]
mov dword [ebp - 4], eax
je 0x550949
xor eax, eax
inc eax
jmp 0x55098d
cmp edi, eax
jae 0x550951
xor eax, eax
jmp 0x55098d
cmp eax, esi
jae 0x550958
mov dword [ebp - 4], esi
push 4
push ebx
push dword [ebp - 8]
push dword [ebp - 4]
call dword [sym.imp.KERNEL32.dll_VirtualAlloc]
mov eax, dword [0x882698]
jmp 0x550971
mov dword [ebp - 4], edi
dec eax
neg eax
sbb eax, eax
and eax, 0x103
lea ecx, [ebp - 0xc]
push ecx
inc eax
push eax
push dword [ebp - 8]
push dword [ebp - 4]
call dword [sym.imp.KERNEL32.dll_VirtualProtect]
lea esp, [ebp - 0x58]
pop edi
pop esi
pop ebx
leave
ret