Things that slow your PC down

You are install one CCTV Software in your Customer PC. During boot up a computer brand new from the store, and to revel in the galactic super-speed in which it loads. It’s another to keep it running at that same speed, especially after some months have passed.

There are many reasons why your computer isn’t running at its optimum. Fortunately, they’re all very easy to solve. Read on to find out what slows your PC down, and what you can do about it.

An overloaded startup
Most applications you install usually add themselves automatically to your Start Up folder. This results in a slower startup because of the time needed to load them all. If your computer used to boot at the speed of light, but now moves slower than an old lady at the zebra crossing, this might be your problem.

SOLVE THIS: by accessing the MSCONFIG command through your search bar or run application, heading to the Startup tab at the top, and unchecking all unnecessary programmes. Seriously, do you really need iTunes to boot whenever you start your computer?

Too many temporary files
Whenever you look at webpages, watch videos, look at photos or even type on Microsoft Word, your computer stores temporary files so that it can load up faster the next time round. These files build up over time and may slow your computer down, especially since they’re usually located in your OS drive.

SOLVE THIS: By running Windows Disk Cleanup, found in Accessories, regularly.

A fragmented disk
A very old school problem, but still a very real one. Disk fragmentation occurs when the file system can’t or won’t allocate enough continuous space to store a complete file. This results in gaps within that file, and can make that file run slower than it usually would. Sometimes, those gaps occur when the OS deletes a file it doesn’t need any more. (This is safe though, your OS is smarter than you think).

SOLVE THIS: By running the Disk Defragmenter, also found in Accessories, regularly. We suggest not using the computer whilst the Defragmenter runs so as to minimise more fragmentation 

Programs uninstalled improperly
What a mouthful this header is. A PC does not work like a MAC – simply deleting the application you don’t want won’t cut it, and leaves behind remaining files that may cause your computer to slow down.

SOLVE THIS: By always uninstalling programs with the proper uninstall.exe, or remove them via the Control Panel. Go one step further to delete leftover files from the folder manually after uninstallation. This could include save games, 3rd party add ons, screenshots and etc.

A full OS disk
Many people make the mistake of saving everything possible into their C:/ drive, and that usually hosts their OS, or operating system. Once that drive gets too full, it slows down, thereby slowing down your entire computer’s processing speed.

SOLVE THIS: by partitioning your drive into C:/ and D:/ and saving your data in D:/. The lack of strain on your OS drive will let it run faster. You might be pleasantly amazed at the difference this can make.

Background anti-viruses
Anti-viruses are always helpful, but can sometimes do more harm than good. Since they’re always running and usually boot together with your computer, they can slow down processes considerably. Strangely enough, it’s always the ones you’ve got to pay for that wreak the most havoc.

SOLVE THIS: By disabling auto scans and updates, or by switching to a more lightweight, freeware anti-virus. Some have suggested Avira and AVG Antivirus, but it’s your job to ask your trusted geek friend what he’s using.

Spyware and viruses
Malicious software often heads straight for your Windows Registry or core file system, slowing down your computer. They can sneak in with applications you download online and install, and can also hop in from less-than-savoury websites you visit.

SOLVE THIS: While spyware and viruses can be removed manually by deleting them from your registry, some can be more persistent. In this case, use an automatic spyware remover – tons are available if you do a Google search. One of the more popular one is Ad-Aware Spyware Remover.

--Thanks to Maryanne Lee to provide info.

Hacking CCTV Security Video Surveillance Systems with Metasploit

A new module for the Metasploit Framework, CCTV DVR Login Scanning Utility*, discovers and tests the security of standalone CCTV (Closed Circuit Television) video surveillance systems. Such systems are frequently deployed in retail stores, living communities, personal residences, and business environments as part of their physical security program. However, many of these systems are vulnerable to exploitation that can allow attackers remote access. Such remote access, enabled by default, can allow not only the ability to view real-time video, but control of the cameras (if supported), and provide access to archived footage.

Most owners of CCTV video surveillance systems may not even be fully aware of the device's remote access capabilities as monitoring may be conducted exclusively via the local video console. This further increases the likelihood of attackers gaining/persisting remote access, with no indication to the owner that their video surveillance system and archived footage may be accessed remotely.

Here at Gotham Digital Science, we often encounter video surveillance systems during penetration testing engagements – some of which may be exposed to the Internet, either intentionally or by accident. With any video surveillance system it is often interesting (and sometimes very important) to find out exactly what cameras are monitoring/recording within the environment. Furthermore, access to such systems can often be utilized to support physical security testing initiatives.

This module targets standalone CCTV video surveillance systems by MicroDigital, HIKVISION, CTRing, and a substantial number of other rebranded devices.

msf > use auxiliary/scanner/misc/cctv_dvr_loginmsf auxiliary(cctv_dvr_login) > set RHOSTS 10.10.1.14RHOSTS => 10.10.1.14msf auxiliary(cctv_dvr_login) > exploit

[*] 10.10.1.14:5920 CCTV_DVR - [001/133] - Trying username:'admin' with password:''

[-] 10.10.1.14:5920 CCTV_DVR - [001/133] - Failed login as: 'admin'

[*] 10.10.1.14:5920 CCTV_DVR - [002/133] - Trying username:'user' with password:''

[-] 10.10.1.14:5920 CCTV_DVR - [002/133] - Invalid user: 'user'

[*] 10.10.1.14:5920 CCTV_DVR - [003/133] - Trying username:'admin' with password:'admin'

[-] 10.10.1.14:5920 CCTV_DVR - [003/133] - Failed login as: 'admin'

[*] 10.10.1.14:5920 CCTV_DVR - [004/133] - Trying username:'admin' with       password:'1111'

[+] 10.10.1.14:5920 Successful login: 'admin' : '1111'

[*] Confirmed IE ActiveX HTTP interface (CtrWeb.cab v1,1,3,1): http://10.10.1.14:80

[*] Scanned 1 of 1 hosts (100% complete)

[*] Auxiliary module execution completed

*CCTV DVR Login Scanning Utility:

This module tests for standalone CCTV DVR video surveillance deployments specifically by MicroDigital, HIKVISION, CTRing, and numerous other rebranded devices that are utilizing default vendor passwords. Additionally, this module has the ability to brute force user accounts. Such CCTV DVR video surveillance deployments support remote viewing through Central Management Software (CMS) via the CMS Web Client, an IE ActiveX control hosted over HTTP, or through Win32 or mobile CMS client software. By default, remote authentication is handled over port 5920/TCP with video streaming over 5921/TCP. After successful authentication over 5920/TCP this module will then attempt to determine if the IE ActiveX control is listening on the default HTTP port (80/TCP).

Module Name : auxiliary/scanner/misc/cctv_dvr_login

Authors: Mr. Justin Cacak

Visit: http://www.rapid7.com/db/modules/auxiliary/scanner/misc/cctv_dvr_login