Function at 0x54ec20
Capabilities:
Get file size
Query or enumerate registry value
Read file on windows
Set registry value

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x5c8480
mov eax, dword fs:[0]
push eax
mov dword fs:[0], esp
push ecx
mov eax, 0x1a84
call fcn.00584c60
push ebx
mov ebx, ecx
push esi
push edi
mov eax, dword [ebx + 0xc]
mov dword [ebp - 0x10], esp
mov dword [ebp - 0x30], ebx
mov dword [ebp - 4], 0
mov eax, dword [eax + 0xe0]
test eax, eax
je 0x54f344
mov edx, dword [eax]
test edx, edx
je 0x54f344
cmp dword [eax + 4], 0x800
jl 0x54f344
mov ecx, 0x200
xor eax, eax
lea edi, [ebp - 0xa8c]
lea esi, [ebp - 0xa8c]
rep stosd dword es:[edi], eax
mov edi, edx
mov ecx, 0x200
xor edx, edx
repe cmpsd dword [esi], dword es:[edi]
je 0x54f344
mov edi, dword [ebx + 0x68]
test edi, edi
mov dword [ebp - 0x2c], edi
je 0x54ecb3
mov edi, dword [edi + 0x38]
mov dword [ebp - 0x2c], edi
mov dword [ebp - 0x4c], edi
mov byte [ebp - 0x11], 0
test edi, edi
je 0x54f01f
mov eax, dword [edi + 0x10]
push 0
push 0
push 3
push 0
push 3
push closesocket
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov esi, eax
cmp esi, 0xffffffff
mov dword [ebp - 0x18], esi
je 0x54f014
lea ecx, [ebp - 0x34]
mov dword [ebp - 0x34], 0
push ecx
push esi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
cmp eax, 0xffffffff
jne 0x54ed0e
call dword [sym.imp.KERNEL32.dll_GetLastError]
test eax, eax
jne 0x54f004
mov edx, dword [ebp - 0x30]
lea ecx, [ebp - 0x1c]
push 0
push ecx
mov eax, dword [edx + 0xc]
push 0
push esi
mov dword [ebp - 0x1c], 0
mov ebx, dword [eax + 0xe0]
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
cmp eax, 0xffffffff
je 0x54edc6
mov ecx, 0x200
xor eax, eax
lea edi, [ebp - 0xa8c]
lea edx, [ebp - 0x28]
rep stosd dword es:[edi], eax
stosb byte es:[edi], al
push 0
push edx
lea eax, [ebp - 0xa8c]
push 0x800
push eax
push esi
mov dword [ebp - 0x28], 0
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x54edc6
mov ecx, dword [ebp - 0x28]
test ecx, ecx
je 0x54edc6
mov esi, dword [ebx]
test esi, esi
je 0x54edc6
mov edi, dword [ebx + 8]
mov eax, dword [ebx + 4]
inc edi
cmp ecx, eax
mov dword [ebx + 8], edi
jge 0x54ed8a
mov eax, ecx
mov ecx, eax
lea edi, [ebp - 0xa8c]
xor edx, edx
repe cmpsb byte [esi], byte es:[edi]
jne 0x54edc6
mov ecx, dword [ebx + 0xc]
test ecx, ecx
je 0x54eda4
cmp eax, 0x40
jge 0x54edab
cmp eax, 0x200
jl 0x54edb1
inc ecx
mov dword [ebx + 0xc], ecx
jmp 0x54edc2
mov eax, dword [ebx + 8]
dec eax
mov dword [ebx + 8], eax
mov eax, dword [ebp - 0x28]
cmp eax, 0x104
jbe 0x54edc6
mov byte [ebp - 0x11], 1
mov eax, dword [ebp - 0x2c]
lea edx, [ebp - 0x54]
mov dword [ebp - 0x38], 0x10
mov ecx, dword [eax + 0x40]
push ecx
push 0x656fa0
push edx
call fcn.005851fa
add esp, 0xc
lea eax, [ebp - 0x38]
lea ecx, [ebp - 0x48]
lea edx, [ebp - 0x54]
push eax
mov eax, dword [ebp - 0x30]
push ecx
push 0
mov ecx, dword [eax + 0xbc]
push 0
push edx
push ecx
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
test eax, eax
jne 0x54f004
mov eax, dword [ebp - 0x2c]
mov ecx, dword [ebp - 0x3c]
mov edx, dword [eax + 8]
mov esi, dword [eax + 0xc]
mov eax, dword [ebp - 0x40]
cmp eax, edx
jne 0x54ee28
cmp ecx, esi
je 0x54eeff
cmp ecx, esi
jg 0x54ee3c
jl 0x54ee32
cmp eax, edx
jae 0x54ee3c
sub edx, eax
sbb esi, ecx
mov eax, edx
mov ecx, esi
jmp 0x54ee40
sub eax, edx
sbb ecx, esi
mov edx, dword [ebp - 0x30]
mov dword [ebp - 0x1c], ecx
lea ecx, [ebp - 0x1c]
push 0
mov edx, dword [edx + 0xc]
push ecx
push eax
mov ebx, dword [edx + 0xe0]
mov edx, dword [ebp - 0x18]
push edx
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
cmp eax, 0xffffffff
je 0x54eef9
mov ecx, 0x200
xor eax, eax
lea edi, [ebp - 0x1a94]
mov edx, dword [ebp - 0x18]
rep stosd dword es:[edi], eax
stosb byte es:[edi], al
lea eax, [ebp - 0x24]
push 0
push eax
lea ecx, [ebp - 0x1a94]
push 0x800
push ecx
push edx
mov dword [ebp - 0x24], 0
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x54eef9
mov ecx, dword [ebp - 0x24]
test ecx, ecx
je 0x54eef9
mov esi, dword [ebx]
test esi, esi
je 0x54eef9
mov edi, dword [ebx + 8]
mov eax, dword [ebx + 4]
inc edi
cmp ecx, eax
mov dword [ebx + 8], edi
jge 0x54eebd
mov eax, ecx
mov ecx, eax
lea edi, [ebp - 0x1a94]
xor edx, edx
repe cmpsb byte [esi], byte es:[edi]
jne 0x54eef9
mov ecx, dword [ebx + 0xc]
test ecx, ecx
je 0x54eed7
cmp eax, 0x40
jge 0x54eede
cmp eax, 0x200
jl 0x54eee4
inc ecx
mov dword [ebx + 0xc], ecx
jmp 0x54eef5
mov eax, dword [ebx + 8]
dec eax
mov dword [ebx + 8], eax
mov eax, dword [ebp - 0x24]
cmp eax, 0x104
jbe 0x54eef9
mov byte [ebp - 0x11], 1
mov ecx, dword [ebp - 0x3c]
mov eax, dword [ebp - 0x40]
mov edx, dword [ebp - 0x2c]
mov esi, dword [edx]
test esi, esi
je 0x54f004
mov edx, dword [esi + 0x20]
mov esi, dword [esi + 0x24]
cmp eax, edx
jne 0x54ef1e
cmp ecx, esi
je 0x54f004
mov edi, dword [ebp - 0x2c]
mov ebx, dword [edi + 8]
cmp ebx, edx
jne 0x54ef33
mov edi, dword [edi + 0xc]
cmp edi, esi
je 0x54f004
cmp ecx, esi
jg 0x54ef47
jl 0x54ef3d
cmp eax, edx
jae 0x54ef47
sub edx, eax
sbb esi, ecx
mov eax, edx
mov ecx, esi
jmp 0x54ef4b
sub eax, edx
sbb ecx, esi
mov edx, dword [ebp - 0x30]
mov dword [ebp - 0x1c], ecx
lea ecx, [ebp - 0x1c]
push 0
mov edx, dword [edx + 0xc]
push ecx
push eax
mov ebx, dword [edx + 0xe0]
mov edx, dword [ebp - 0x18]
push edx
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
cmp eax, 0xffffffff
je 0x54f004
mov ecx, 0x200
xor eax, eax
lea edi, [ebp - 0x1290]
mov edx, dword [ebp - 0x18]
rep stosd dword es:[edi], eax
stosb byte es:[edi], al
lea eax, [ebp - 0x20]
push 0
push eax
lea ecx, [ebp - 0x1290]
push 0x800
push ecx
push edx
mov dword [ebp - 0x20], 0
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x54f004
mov ecx, dword [ebp - 0x20]
test ecx, ecx
je 0x54f004
mov esi, dword [ebx]
test esi, esi
je 0x54f004
mov edi, dword [ebx + 8]
mov eax, dword [ebx + 4]
inc edi
cmp ecx, eax
mov dword [ebx + 8], edi
jge 0x54efc8
mov eax, ecx
mov ecx, eax
lea edi, [ebp - 0x1290]
xor edx, edx
repe cmpsb byte [esi], byte es:[edi]
jne 0x54f004
mov ecx, dword [ebx + 0xc]
test ecx, ecx
je 0x54efe2
cmp eax, 0x40
jge 0x54efe9
cmp eax, 0x200
jl 0x54efef
inc ecx
mov dword [ebx + 0xc], ecx
jmp 0x54f000
mov eax, dword [ebx + 8]
dec eax
mov dword [ebx + 8], eax
mov eax, dword [ebp - 0x20]
cmp eax, 0x104
jbe 0x54f004
mov byte [ebp - 0x11], 1
mov eax, dword [ebp - 0x18]
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov edi, dword [ebp - 0x2c]
mov ebx, dword [ebp - 0x30]
mov edi, dword [edi + 0x38]
mov dword [ebp - 0x2c], edi
jmp 0x54ecba
mov eax, dword [ebx + 0xac]
test eax, eax
je 0x54f231
mov eax, dword [ebx + 0x1d0]
test eax, eax
je 0x54f04e
push eax
lea ecx, [ebp - 0x288]
push str.SoftwareDownloadManager_ldChList
push ecx
call fcn.005851fa
add esp, 0xc
jmp 0x54f070
mov edx, dword [ebx + 0x10c]
mov eax, dword [ebx + 0x108]
push edx
push eax
lea ecx, [ebp - 0x288]
push str.SoftwareDownloadManagerGrabberStsProjects_ld_ldChList
push ecx
call fcn.005851fa
add esp, 0x10
mov edx, dword [ebx + 0x68]
lea ecx, [ebp - 0x18]
mov eax, dword [edx + 0x10]
push eax
call fcn.005a0d1d
mov byte [ebp - 4], 1
xor esi, esi
cmp esi, 0xffffffff
je 0x54f225
push esi
lea ecx, [ebp - 0x54]
push 0x656fa0
push ecx
call fcn.005851fa
add esp, 0xc
lea edx, [ebp - 0x38]
lea eax, [ebp - 0x48]
lea ecx, [ebp - 0x54]
push edx
mov edx, dword [ebx + 0xbc]
push eax
push 0
push 0
push ecx
push edx
mov dword [ebp - 0x38], 0x10
call dword [sym.imp.ADVAPI32.dll_RegQueryValueExA]
test eax, eax
jne 0x54f225
test esi, esi
je 0x54f21d
mov eax, dword [0x67da2c]
mov dword [ebp - 0x28], eax
mov ecx, dword [ebp - 0x18]
push esi
push ecx
lea edx, [ebp - 0x28]
push str._s_d
push edx
mov byte [ebp - 4], 2
call fcn.00599a28
mov eax, dword [ebp - 0x28]
add esp, 0x10
push 0
push 0
push 3
push 0
push 3
push closesocket
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
mov dword [ebp - 0x24], eax
je 0x54f211
lea ecx, [ebp - 0x1c]
mov dword [ebp - 0x1c], 0
push ecx
push eax
call dword [sym.imp.KERNEL32.dll_GetFileSize]
xor ecx, ecx
cmp eax, 0xffffffff
jne 0x54f146
test ecx, ecx
jne 0x54f146
call dword [sym.imp.KERNEL32.dll_GetLastError]
test eax, eax
jne 0x54f204
mov edx, dword [ebp - 0x30]
lea ecx, [ebp - 0x34]
push 0
push ecx
mov eax, dword [edx + 0xc]
mov edx, dword [ebp - 0x24]
push 0
push edx
mov ebx, dword [eax + 0xe0]
mov dword [ebp - 0x34], 0
call dword [sym.imp.KERNEL32.dll_SetFilePointer]
cmp eax, 0xffffffff
je 0x54f204
mov ecx, 0x200
xor eax, eax
lea edi, [ebp - 0x1290]
mov edx, dword [ebp - 0x24]
rep stosd dword es:[edi], eax
stosb byte es:[edi], al
lea eax, [ebp - 0x20]
push 0
push eax
lea ecx, [ebp - 0x1290]
push 0x800
push ecx
push edx
mov dword [ebp - 0x20], 0
call dword [sym.imp.KERNEL32.dll_ReadFile]
test eax, eax
je 0x54f204
mov ecx, dword [ebp - 0x20]
test ecx, ecx
je 0x54f204
mov esi, dword [ebx]
test esi, esi
je 0x54f204
mov edi, dword [ebx + 8]
mov eax, dword [ebx + 4]
inc edi
cmp ecx, eax
mov dword [ebx + 8], edi
jge 0x54f1c8
mov eax, ecx
mov ecx, eax
lea edi, [ebp - 0x1290]
xor edx, edx
repe cmpsb byte [esi], byte es:[edi]
jne 0x54f204
mov ecx, dword [ebx + 0xc]
test ecx, ecx
je 0x54f1e2
cmp eax, 0x40
jge 0x54f1e9
cmp eax, 0x200
jl 0x54f1ef
inc ecx
mov dword [ebx + 0xc], ecx
jmp 0x54f200
mov eax, dword [ebx + 8]
dec eax
mov dword [ebx + 8], eax
mov eax, dword [ebp - 0x20]
cmp eax, 0x104
jbe 0x54f204
mov byte [ebp - 0x11], 1
mov eax, dword [ebp - 0x24]
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov ebx, dword [ebp - 0x30]
lea ecx, [ebp - 0x28]
mov byte [ebp - 4], 1
call fcn.005a0c5d
mov esi, dword [ebp - 0x44]
jmp 0x54f085
lea ecx, [ebp - 0x18]
mov byte [ebp - 4], 0
call fcn.005a0c5d
mov al, byte [ebp - 0x11]
test al, al
je 0x54f344
push str.Some_chunks_matched_with_start_of_file__Deleting_all__except_first._n
mov ecx, ebx
call fcn.0054d550
mov esi, dword [ebp - 0x4c]
xor edi, edi
cmp esi, edi
je 0x54f2b5
mov ecx, dword [esi]
cmp ecx, edi
je 0x54f25c
mov edx, dword [ecx]
call dword [edx + 8]
mov eax, dword [esi + 0x10]
push eax
call fcn.00586223
mov ecx, dword [esi + 0x10]
add esp, 4
cmp eax, 0xffffffff
push ecx
jne 0x54f278
push str.Could_not_delete_temp_file__ls_n
jmp 0x54f27d
push str.Deleting_temp_file__ls_n
lea edx, [ebp - 0x188]
push edx
call fcn.005851fa
add esp, 0xc
lea eax, [ebp - 0x188]
mov ecx, ebx
push eax
call fcn.0054d550
mov edi, esi
mov esi, dword [esi + 0x38]
test edi, edi
je 0x54f24b
mov ecx, edi
call fcn.0050d7d0
push edi
call fcn.0059d022
add esp, 4
jmp 0x54f24b
lea ecx, [ebx + 0x48]
call fcn.0050c020
mov eax, dword [ebx + 0xbc]
cmp eax, edi
je 0x54f2eb
lea ecx, [ebp - 0x48]
push 0x10
push ecx
push edi
push edi
push 0x65d508
push eax
mov dword [ebp - 0x48], edi
mov dword [ebp - 0x40], edi
mov dword [ebp - 0x3c], edi
mov dword [ebp - 0x44], 0xffffffff
call dword [sym.imp.ADVAPI32.dll_RegSetValueExA]
mov eax, dword [ebx + 0x68]
mov dword [ebx + 0x80], edi
cmp eax, edi
mov dword [ebx + 0x84], edi
mov dword [ebx + 0xac], edi
je 0x54f355
mov dword [eax + 0x38], edi
mov edx, dword [ebx + 0x68]
mov edx, dword [edx]
mov eax, dword [edx + 0x1c]
mov ecx, dword [edx + 0x18]
cmp eax, edi
jl 0x54f323
jg 0x54f31c
cmp ecx, edi
jbe 0x54f323
sub ecx, 1
sbb eax, edi
jmp 0x54f327
xor ecx, ecx
xor eax, eax
mov dword [edx + 0x30], ecx
mov dword [edx + 0x34], eax
mov eax, dword [ebx + 0x68]
mov ecx, dword [eax]
mov edx, dword [ecx + 0x38]
mov dword [ebx + 0x158], edx
mov eax, dword [ecx + 0x3c]
mov dword [ebx + 0x15c], eax
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov ecx, dword [ebp - 0xc]
mov dword [ebx + 0x158], edi
mov dword [ebx + 0x130], edi
mov dword [ebx + 0x15c], edi
mov dword [ebx + 0x134], edi
pop edi
pop esi
mov dword fs:[0], ecx
pop ebx
mov esp, ebp
pop ebp
ret