Praveen Tutorials

  Network forensics is the study of network traffic to search for truth in civil, criminal, and administrative matters to protect users and resources from exploitation, invasion of privacy, and any other crime

  Steganography is the art and science of information hiding. Steganography doesn’t change the meaning of the message, it hides the message. It is difficult to even identify the communication. Steganography is one of the anti-forensics technique.

Phishing  Phishing is the use to social engineering tactics to trick users into revealing confidential or sensitive  information. Phishing has become a universal phenomenon and is still a major threat in the present  era. Attackers take advantage of various contemporary incidents to craft threatening or enticing  messages which makes the users click fake links and provide necessary information for the attackers.  Wikipedia defines phishing as criminally fraudulent process of attempting to acquire sensitive  information such as usernames, passwords and credit card details by masquerading as a trustworthy  entity in an electronic communication. E-mail is a popular medium used in the phishing attacks and such emails are also called as spam.  However, not all emails are spam emails. It is important to understand these types of emails with  which we deal every day. We will discuss about two such emails:  Spam emails Hoax emails.

  Key Loggers A keylogger is a software or a program to capture keystrokes and other information on the victim  machine while the user is typing on the machine. The information is captured in a covert manner and  is sent to the hacker who might be at a remote location. Keyloggers can be classified into two types:  Software keyloggers  Hardware keyloggers Software keyloggers Software keylogger is a program installed on the victim machine for keylogging. The keylogger can  be installed without the knowledge of the target user by sending is as an attachment to an email or  through other means like virus, worm, or a trojan. Software keyloggers are generally spread as trojans  and viruses. A keylogger generally contains a DLL files and an EXE file. Hardware keyloggers Hardware keyloggers are small physical devices which can be inserted or attached to target computer  systems or other electronic machines to capture the keystrokes. To install these ...

 Anti-forensics can be a computer investigator's worst nightmare. Programmers design anti-forensic tools to make it hard or impossible to retrieve information during an investigation. Essentially, anti-forensics refers to any technique, gadget or software designed to hamper a computer investigation. There are dozens of ways people can hide information. Some programs can fool computers by changing the information in files' headers. A file header is normally invisible to humans, but it's extremely important -- it tells the computer what kind of file the header is attached to. If you were to rename an mp3 file so that it had a .gif extension, the computer would still know the file was really an mp3 because of the information in the header. Some programs let you change the information in the header so that the computer thinks it's a different kind of file. Detectives looking for a specific file format could skip over important evidence because it looked like it wasn't r...