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ADSL > Unexplained traffic usage - Web Africa > Support KnowledgeBase
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Unexplained traffic usage
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Problem/Summary An ADSL account may contain extraneous or unexplainable usage on the stats page. There are a number of causes of unwanted traffic: Causes Network chatter Up to 10mb per day of random packets caused by portscans, dns, router update checks, remote pings etc. This will occur even if your PC"s are switched off if you have a router as opposed to a USB based ADSL modem. Skype New Skype client generates traffic even if not in use. This is because skype can turn any PC into a 3rd party router for assisting in its P2P telephony functioning. Stolen username Their are known exploits and hackers actively scanning insecure routers to obtain usernames and passwords. These are then used to steal bandwidth from the account. Wireless hijacking If your router is wireless enabled, hackers in the nearby vicinity may be using your bandwidth for their own purposes, even if WEP or WPA is enabled. Spyware,malware,viruses,trojans, rootkits Any of the PC"s connected may be infected with the above causing your machine to become a zombie for sending spam or an instrument in sending denial of service attacks. New evidence suggests rootkit technology is now being employed to avoid detection by most Antivirus programs. Solutions Network chatter Turn of your router to avoid any traffic charges. Alternatively put the router in "stealth mode" - this makes it appear to be offline to the outside world and reduces the small amount of daily wastage. Skype Log out of Skype when not in use. Use a different client, eg MSN Messenger or other SIP based voice services. Stolen username 1) Change all passwords - adsl password, router password, client service area password etc... 2) Enable Web Africa"s DSLSecure technology - this allows you to lock your account to your own physical ADSL line preventing it from being used elsewhere. This can be found at http://dsl.webafrica.co.za/ or by clicking the Manage button on your account in the Client Area. Wireless hijacking Enable WPA-PSK encryption using a 12+ character random password. Do not use known words, product names, labels or anything else. Do not use WEP encryption as this can be cracked within minutes giving a false sense of security. Spyware,malware,viruses,trojans, rootkits Run multiple virus and anti spyware scans on your system, there are various tools available to do this via the web: Trendmicro Housecall Panda Active Scan There are also various tools available to track traffic usage on individual PC"s, the easiest to use is probably Netlimiter: NetLimiter NB: Please also see these password guidelines to ensure the passwords you have selected are adequately secure: http://security.fnal.gov/UserGuide/password.htm http://www.newsforge.com/software/03/02/26/1639212.shtml?tid=2 |
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