Function at 0x42a080
Capabilities:
Check os version
Delete registry value
Set registry value

Disassembly:
push ebp
mov ebp, esp
push 0xffffffffffffffff
push 0x47f75e
mov eax, dword fs:[0]
push eax
sub esp, 0x1d4
mov eax, dword [0x4ac084]
xor eax, ebp
mov dword [ebp - 0x10], eax
push esi
push edi
push eax
lea eax, [ebp - 0xc]
mov dword fs:[0], eax
call dword [sym.imp.KERNEL32.dll_GetVersion]
cmp al, 6
jae 0x42a1b5
push str.No_install_update_for_WinXP
push 1
push 3
push 0x102
push str.Normal
push str.Installer.cpp
lea ecx, [ebp - 0x174]
call fcn.00457220
push eax
call fcn.004573f0
add esp, 0x10
cmp dword [0x4b0498], 0
jne 0x42a1ae
call fcn.00403450
xor ecx, ecx
mov edx, eax
test edx, edx
setne cl
test ecx, ecx
jne 0x42a110
push 0x80004005
call fcn.004039a0
mov eax, dword [edx]
mov ecx, edx
call dword [eax + 0xc]
add eax, 0x10
mov dword [ebp - 0x118], eax
push 0x11
push str.STRING_NOT_FOUND_
lea ecx, [ebp - 0x118]
mov dword [ebp - 4], 0
call fcn.004039c0
mov eax, dword [0x4b048c]
lea eax, [eax + eax*8]
movzx eax, word [eax*4 + 0x4ac960]
push eax
push 0x43a
push ecx
lea ecx, [ebp - 0x118]
call fcn.00415350
test eax, eax
jne 0x42a178
movzx eax, word [0x4ac960]
push eax
push 0x43a
push ecx
lea ecx, [ebp - 0x118]
call fcn.00415350
mov esi, dword [ebp - 0x118]
push 0x30
push dword [0x4b0650]
push esi
push 0
call dword [sym.imp.USER32.dll_MessageBoxW]
mov dword [ebp - 4], 0xffffffff
add esi, 0xfffffff0
or eax, 0xffffffff
lock xadd dword [esi + 0xc], eax
dec eax
test eax, eax
jg 0x42a1ae
mov ecx, dword [esi]
push esi
mov eax, dword [ecx]
call dword [eax + 4]
xor eax, eax
jmp 0x42a813
push 0x43
call dword [sym.imp.USER32.dll_GetSystemMetrics]
mov esi, eax
test esi, esi
je 0x42a220
push esi
push str.Started_in_safe_mode___i_
push 3
push 3
push 0x110
push str.Normal
push str.Installer.cpp
lea ecx, [ebp - 0x180]
call fcn.00457220
push eax
call fcn.004573f0
push esi
push str.InstallStartedInSafeMode_i
call fcn.0040c350
add esp, 0x1c
cmp dword [0x4b0498], 0
jne 0x42a1ae
push 0x30
push dword [0x4b0650]
push str.Installer_cannot_be_started_in_safe_mode
push 0
call dword [sym.imp.USER32.dll_MessageBoxW]
xor eax, eax
jmp 0x42a813
cmp dword [0x4b04c0], 0
jne 0x42a2ae
cmp word [0x4b0624], 0
jne 0x42a255
cmp word [0x4b0626], 0
jne 0x42a255
cmp word [0x4b0628], 0
jne 0x42a255
cmp word [0x4b062a], 0
je 0x42a2ae
push str.No_update_of_PCKeeper_2.1_to_2.2
push 1
push 3
push 0x11b
push str.Normal
push str.Installer.cpp
lea ecx, [ebp - 0x18c]
call fcn.00457220
push eax
call fcn.004573f0
add esp, 0x10
lea ecx, [ebp - 0x128]
call fcn.00403180
mov edx, 0x438
mov dword [ebp - 4], 1
lea ecx, [ebp - 0x128]
call fcn.0041f100
mov esi, dword [ebp - 0x128]
jmp 0x42a17e
lea ecx, [ebp - 0x168]
call fcn.004297e0
push str.Msftedit.dll
mov dword [ebp - 4], 2
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
lea ecx, [ebp - 0xb8]
call fcn.0042afc0
mov byte [ebp - 4], 3
cmp dword [0x4b04c0], 0
je 0x42a4ef
push str.Admin_start.
push 1
push 3
push 0x12b
push str.Normal
push str.Installer.cpp
lea ecx, [ebp - 0x198]
call fcn.00457220
push eax
call fcn.004573f0
add esp, 0x10
push 1
call fcn.0040d940
mov ecx, eax
call fcn.0040d990
cmp dword [0x4b049c], 0
jne 0x42a32f
call fcn.0042b880
lea ecx, [ebp - 0xb8]
call fcn.0042cdb0
cmp dword [0x4b049c], 0
je 0x42a45b
cmp dword [0x4b04b8], 0
je 0x42a3c9
push str.installing_update__silent_mode
push 1
push 3
push 0x137
push str.Normal
push str.Installer.cpp
lea ecx, [ebp - 0x1a4]
call fcn.00457220
push eax
call fcn.004573f0
add esp, 0x10
mov dword [ebp - 0x58], 0
lea ecx, [ebp - 0xb8]
mov dword [ebp - 0x24], 0
call fcn.0042cdf0
mov edi, eax
lea ecx, [ebp - 0x1b0]
push edi
push str.installing_update__silent_mode_finish__res___d
push 1
push 3
push 0x139
push str.Normal
push str.Installer.cpp
call fcn.00457220
push eax
call fcn.004573f0
add esp, 0x14
jmp 0x42a7db
mov dword [ebp - 0x138], 0
mov dword [ebp - 0x134], 0
mov dword [ebp - 0x130], 0
push 0x10102
push str.SoftwareEssentwarePCKAV
push reloc.OLEAUT32.dll_SysReAllocString
lea ecx, [ebp - 0x138]
mov byte [ebp - 4], 4
call fcn.00402f70
push str.LssDt
push dword [ebp - 0x138]
call dword [sym.imp.ADVAPI32.dll_RegDeleteValueW]
push eax
push str.Removing_LssDt_result_0x_x
push 1
push 3
push 0x142
push str.Normal
push str.Installer.cpp
lea ecx, [ebp - 0x1bc]
call fcn.00457220
push eax
call fcn.004573f0
add esp, 0x14
mov byte [ebp - 4], 3
lea ecx, [ebp - 0x138]
call fcn.00403050
cmp dword [0x4b049c], 0
jne 0x42a4a7
push str.InstallRun
call fcn.0040c350
add esp, 4
cmp dword [0x4b049c], 0
jne 0x42a4a7
cmp dword [0x4b0498], 0
je 0x42a4a7
push str.InstallSilent
call fcn.0040c350
add esp, 4
mov dword [ebp - 0x58], 0
lea ecx, [ebp - 0xb8]
mov dword [ebp - 0x24], 0
call fcn.0042cdf0
mov edi, eax
jmp 0x42a7db
lea eax, [ebp - 0xb8]
push eax
lea ecx, [ebp - 0x114]
call fcn.00421e50
lea eax, [ebp - 0x114]
push eax
push 0x41ebe0
push 0
push 0x81
push dword [0x4b0494]
call dword [sym.imp.USER32.dll_DialogBoxParamW]
mov edi, eax
call fcn.0043d540
lea ecx, [ebp - 0x114]
call fcn.00421f30
jmp 0x42a7db
push str.Not_admin_start.
push 1
push 3
push 0x158
push str.Normal
push str.Installer.cpp
lea ecx, [ebp - 0x1c8]
call fcn.00457220
push eax
call fcn.004573f0
add esp, 0x10
push 0
call fcn.0040d940
mov ecx, eax
call fcn.0040d990
lea ecx, [ebp - 0xb8]
call fcn.0042b470
mov edi, eax
test edi, edi
jne 0x42a7db
mov ecx, 0x4b0604
call fcn.0044ac00
test eax, eax
je 0x42a5b4
push edi
lea ecx, [ebp - 0x120]
call fcn.00403ac0
mov byte [ebp - 4], 5
cmp dword [0x4b0498], edi
jne 0x42a56d
cmp dword [0x4b04a0], 0x21
je 0x42a57d
push str._autorun
lea ecx, [ebp - 0x120]
call fcn.00403a70
cmp dword [0x4b049c], 0
je 0x42a5a5
push 0
push dword [ebp - 0x120]
mov edx, str.29650533_2E1B_4517_9D0C_B7243F12DF94
mov ecx, str.299FFF17_0FDF_47F4_A894_1DADF0D98007
push str.PCKeeper.exe
call fcn.0040b850
add esp, 0xc
lea ecx, [ebp - 0x120]
mov byte [ebp - 4], 3
call fcn.004031b0
mov ecx, 0x4b060c
call fcn.0044ac00
test eax, eax
je 0x42a7db
cmp dword [0x4b04b0], 0
jne 0x42a7db
cmp dword [0x4b049c], 0
je 0x42a67b
mov dword [ebp - 0x144], 0
mov dword [ebp - 0x140], 0
mov dword [ebp - 0x13c], 0
push 0x2001f
push str.SoftwareEssentwarePCKAV
push SysReAllocString
lea ecx, [ebp - 0x144]
mov byte [ebp - 4], 6
call fcn.00402f70
push 4
lea eax, [ebp - 0x12c]
mov dword [ebp - 0x12c], 1
push eax
push 4
push 0
push str.RunSilentScan
push dword [ebp - 0x144]
call dword [sym.imp.ADVAPI32.dll_RegSetValueExW]
push str.Set_RunSilentScan_as_not_admin.
push 1
push 3
push 0x177
push str.Normal
push str.Installer.cpp
lea ecx, [ebp - 0x1d4]
call fcn.00457220
push eax
call fcn.004573f0
add esp, 0x10
lea ecx, [ebp - 0x144]
jmp 0x42a753
mov dword [ebp - 0x150], 0
mov dword [ebp - 0x14c], 0
mov dword [ebp - 0x148], 0
push 0x2001f
push str.SoftwareEssentwarePCKAV
push SysReAllocString
lea ecx, [ebp - 0x150]
call fcn.00402f70
lea eax, [ebp - 0x20]
push eax
call dword [sym.imp.KERNEL32.dll_GetSystemTime]
lea ecx, [ebp - 0x124]
call fcn.00403180
mov byte [ebp - 4], 8
movzx eax, word [ebp - 0x14]
push eax
movzx eax, word [ebp - 0x16]
push eax
movzx eax, word [ebp - 0x18]
push eax
movzx eax, word [ebp - 0x1a]
push eax
movzx eax, word [ebp - 0x1e]
push eax
movzx eax, word [ebp - 0x20]
push eax
lea eax, [ebp - 0x124]
push str._04i__02i__02iT_02i:_02i:_02i
push eax
call fcn.004040a0
mov esi, dword [ebp - 0x124]
lea ecx, [ebp - 0x150]
add esp, 0x1c
push esi
push str.LastInstallDate
call fcn.004083d0
push esi
push str.Set_AV_LastInstallDateTime_
push 1
push 3
push 0x183
push str.Normal
push str.Installer.cpp
lea ecx, [ebp - 0x1e0]
call fcn.00457220
push eax
call fcn.004573f0
add esp, 0x14
lea ecx, [ebp - 0x124]
call fcn.004031b0
lea ecx, [ebp - 0x150]
mov byte [ebp - 4], 3
call fcn.00403050
push 0x490710
lea ecx, [ebp - 0x11c]
call fcn.00403ac0
xor esi, esi
mov byte [ebp - 4], 9
cmp dword [0x4b049c], esi
je 0x42a781
push str._autorun
jmp 0x42a78f
cmp dword [0x4b04a0], 0x20
je 0x42a7d0
push str._silentscan
lea ecx, [ebp - 0x11c]
call fcn.00409600
cmp dword [0x4b04a0], 0x20
mov eax, 0x1d4c0
cmovne esi, eax
cmp dword [0x4b049c], 0
je 0x42a7d0
push esi
push dword [ebp - 0x11c]
mov edx, str.6D62ECA7_CC77_47AF_AA5C_FE6B72350139
mov ecx, str.FE88A67B_BBC2_49A8_B12F_3504144E1044
push str.PCKAV.exe
call fcn.0040b850
add esp, 0xc
lea ecx, [ebp - 0x11c]
call fcn.004031b0
lea ecx, [ebp - 0xb8]
call fcn.0042b130
push 0xffffffffffffffff
push dword [ebp - 0x154]
call dword [sym.imp.KERNEL32.dll_WaitForSingleObject]
push dword [ebp - 0x168]
call dword [sym.imp.gdiplus.dll_GdiplusShutdown]
mov eax, dword [ebp - 0x154]
test eax, eax
je 0x42a811
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov eax, edi
mov ecx, dword [ebp - 0xc]
mov dword fs:[0], ecx
pop ecx
pop edi
pop esi
mov ecx, dword [ebp - 0x10]
xor ecx, ebp
call fcn.00458d41
mov esp, ebp
pop ebp
ret