Forums Connection Issues Cannot log in Dalnet "A-banned"

anyone can help??? when i log in to dalnet it show as below :

-matrix.dal.net- *** You are banned from DALnet
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-matrix.dal.net- *** Reason: [AKILL ID:1344212893K-a] [exp/ma] You are infected with an IRC trojan/virus. Visit http://kline.dal.net/exploits/akills.htm#ma (2012/08/05 17.58)
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-matrix.dal.net- *** Connection info: <unnamed>([-]unknown@183.78.38.174) [183.78.38.174]
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-matrix.dal.net- *** Ban contact: kline@dal.net
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-matrix.dal.net- *** When contacting DALnet, please include all of the information shown above
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A-banned: [AKILL ID:1354232994K-a] [exp/ma] You are infected with an IRC trojan/virus. Visit http://kline.dal.net/exploits/akills.htm#ma (2012/08/05 17.58)
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Closing Link: 0.0.0.0 (A-banned: [AKILL ID:1344212893K-a] [exp/ma] You are infected with an IRC trojan/virus. Visit http://kline.dal.net/exploits/akills.htm#ma (2012/08/05 17.58))
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* Disconnected

but i did a anti-virus scan with latest update, but it still the same!!!what the problem and what should i do???