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News

May witnesses continued increase in malicious code and spam

Network Box : 29 May, 2009  (Technical Article)
Threat analysis for May from Network Box reveals unrelenting increase in the levels of spam and malicious software
Spam and malware continued to increase through May, with spam volumes up 27.7 per cent; and malware up 28.7 per cent, according to analysis of Internet threats by managed security service, Network Box. The number of viruses originating from the UK has also risen over last month; the UK is now responsible for three per cent of the world's malware (from less than two per cent last month).

The US and Korea are the source of most of the world's Internet threats, with the US being responsible for 17.2 per cent and Korea responsible for six per cent of all viruses . Both feature in the top three sources of spam, too: the US produces 11.4 per cent of spam; Brazil comes in second at eight per cent; and Korea third at 4.2 per cent.

The proportion of phishing attacks has reduced slightly from last month, to just over 20 per cent of all viruses (down from 24.6 per cent in April).

According to Simon Heron: "The growth in Internet threats has slowed slightly from the massive 63 per cent we saw last month, but clearly in terms of volumes spam and malware are still rising significantly. We're still seeing the same suspects responsible: namely, the US and Korea."


Top Ten Viruses (Daily average %)

nbh-bscript 22.49824
spam.phish.url 20.35479
nbh-bbadhdr 12.46541
spam.porn.porn_nb_pornhint_34 7.92678
trojan-spy.html.fraud.gen 3.76027
spam.porn.spam_nb_porn_subj_csk_1 1.15971
nbh-biframe 0.99534
virus.win32.virut.a 0.90363
email-worm.win32.netsky.ghc 0.83306
email-worm.win32.netsky.q 0.81502


Top Ten Trojans

trojan-spy.html.fraud.gen 0.02290
trojan-spy.win32.zbot.tmu 0.00096
trojan-spy.win32.zbot.ubb 0.00052
trojan-downloader.win32.injecter.ga 0.00046
trojan-spy.win32.zbot.tnt 0.00020
clm.trojan.zbot-3283 0.00010
clm.trojan.agent-98369 0.00010
trojan-spy.html.fraud.cd 0.00010
trojan-downloader.win32.pif.ow 0.00004
trojan-downloader.win32.agent.bsfh 0.00003

Top Ten Intrusions

NETBIOS 39.68614
BOGON 7.68245
PINGFLOOD 0.89986
ICMP 0.39342
HTTP-S-WEBDAV 0.23266
HTTP-S-WEBDEX 0.01189
HTTP-S-IISATTACK 0.00805
HTTP-S-NIMDA 0.00537
SOBIG-F 0.00471
HTTP-S-UNIXATTACK 0.00349

Top Ten Sources of Viruses

US 17.29710
Korea 6.09192
Brazil 6.02220
Australia 4.93712
Turkey 4.12937
China 3.96674
UK 2.97427
India 2.76763
Poland 2.39389
Russia 2.02443

Top Ten Sources of Spam

US 11.42339
Brazil 8.01518
Korea 5.20619
Turkey 5.08015
Australia 4.72224
China 4.55804
Poland 3.80035
India 3.62598
Russia 2.88603
Spain 2.71537

Top Ten Sources of Intrusions

Korea 27.45661
US 11.06394
Malaysia 10.88435
Hong Kong 4.67055
China 3.82333
Brazil 3.21772
Australia 2.66779
Turkey 2.27104
Poland 1.35851
India 1.32409

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