EnCase Computer Forensics Demo

CSI* - Computer Forensics Files: Real Cases #9 The Case of the Teacher and the Teen Trickster

The stories are true; the names and places have been changed to protect the potentially guilty.

It was a grey October day, the kind of day when a guy likes to cozy up next to a bank of servers to keep warm, when the Teacher first called me. “They think I’m nuts!” were the words emanating from the phone. Well, just because you’re paranoid doesn’t mean they’re not out to get you. I sat up and went to my desk, away from the noisy fans cooling off all those Gigahertzes. “What’s the problem, Miss?”

The young woman explained that she was a not-yet-tenured teacher in a New England (greyer there than here) high school with a problem. Seems that a student in one of her classes was repeating things in the classroom that she had uttered only the night before in the apparently illusory privacy of her own living room. This was happening on a repeated basis and this little freak was freaking her out. She made sure her windows were shut at night. She had someone else speak inside her house while she listened outside - no words escaped to be heard, much less repeated. She looked around for bugs…found only a few spiders. She hired a P.I. to sweep for listening devices - none were found. She went to the police, who were uninterested without some evidence. Her supervisor at the school would not take it seriously. The principal at the school thought she was nuts. She felt that she was in danger of being fired and losing out on a career she’d savored. She was at her wit’s end and sounded it.

She began to suspect her computer was the means of access to invading her privacy, but had no idea how. She already had identified the subject individual and did an admirable amount of research on the subject of computer invasion. She sent me reams of chat logs, articles about cyberinvasions, firewall logs, and other suspicious-looking goings-on with her computer.

I put on my data galoshes and began to wade through the deluge to see what looked like a threat and what did not, and to see if I could find the means of remote access, if any.

Norton Antivirus had picked out some. One was “lsass.shutdown” - the Sasser Worm. A bad character indeed. By contrast, “lsass.exe” is a part of Windows XP itself. Sasser came in looking like something harmless, but in the wider Web, it shut down computers - sometimes before they even finished booting. Airline flights had to be cancelled. Satellite communications were blocked. Insurance companies and banks had to close down for a short while. The Sasser Worm was a bad actor, but it wasn’t giving remote control access and after all, her antivirus program had used its own kind of handcuffs to subdue that particular intruder.

Is a background check expensive? It used to be very expensive. Prior to the internet, people turned to private investigators to find people and research their backgrounds. This took a lot of time and money, even though they were usually thorough searches. Today, online people search services will help you to conduct a search from the privacy and safety of your home or business. The cost is affordable, for as little as a few dollars you can obtain results.

A professional online search website, such as Google, has a giant, updated database that includes the latest people search lookups, cell phone numbers, landline numbers, fax numbers and unlisted numbers. It will also include the latest information about someone’s background. There are free people sites that claim to offer search details. However, these databases are not as updated as the professional sites. They also will not include cell phone number information because cell phone numbers are private numbers.

Method 3: DLL Error still could be caused by some uninstalled programs.If you did not uninstall applications completely, the DLL information of it would remain in the system and next time when you start computer the error message of course would appear because system uploads an invalid application. It is highly recommended that you download Registry Easy to clean and diagnose the registry in your system regularly. It will automatically detect and fix invalid and missing registry keys to keep your computer performance running smoothly

Resource Author Francisco Rodriguez H.
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