#alert http $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET DELETED C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host|3a|"; nocase; content:".c4tdownload.com"; within:26; nocase; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; reference:url,doc.emergingthreats.net/bin/view/Main/2001531; classtype:trojan-activity; sid:2001531; rev:14; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2018-09-13 19:37:29 UTC

Please enter documentation, comments, false positives, or concerns with this signature. Press the Attach button below to add samples or Pcaps.

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Added 2018-09-13 17:52:33 UTC

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#alert http $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET DELETED C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host|3a|"; nocase; content:".c4tdownload.com"; within:26; nocase; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; reference:url,doc.emergingthreats.net/bin/view/Main/2001531; classtype:trojan-activity; sid:2001531; rev:14; metadata:created_at 2010_07_30, updated_at 2010_07_30;)

Added 2017-08-07 20:55:33 UTC

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#alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET DELETED C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host|3a|"; nocase; http_header; content:".c4tdownload.com"; http_header; nocase; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; reference:url,doc.emergingthreats.net/bin/view/Main/2001531; classtype:trojan-activity; sid:2001531; rev:16;)

Added 2011-10-12 19:10:37 UTC

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#alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET DELETED C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host|3a|"; nocase; http_header; content:".c4tdownload.com"; http_header; nocase; classtype: trojan-activity; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; reference:url,doc.emergingthreats.net/bin/view/Main/2001531; sid:2001531; rev:16;)

Added 2011-09-14 21:00:58 UTC

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#alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET DELETED C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host|3a|"; nocase; http_header; content:".c4tdownload.com"; http_header; nocase; classtype: trojan-activity; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; reference:url,doc.emergingthreats.net/bin/view/Main/2001531; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_C4tdownload.com; sid:2001531; rev:16;)

Added 2011-07-12 14:29:58 UTC

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alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host|3a|"; nocase; http_header; content:".c4tdownload.com"; http_header; nocase; classtype: trojan-activity; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; reference:url,doc.emergingthreats.net/bin/view/Main/2001531; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_C4tdownload.com; sid:2001531; rev:16;)

Added 2011-02-04 17:21:31 UTC

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alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host\:"; nocase; content:".c4tdownload.com"; within:26; nocase; classtype: trojan-activity; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; reference:url,doc.emergingthreats.net/bin/view/Main/2001531; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_C4tdownload.com; sid:2001531; rev:12;)

Added 2010-06-23 13:46:05 UTC

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alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host\:"; nocase; content:".c4tdownload.com"; within:26; nocase; classtype: trojan-activity; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; reference:url,doc.emergingthreats.net/bin/view/Main/2001531; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_C4tdownload.com; sid:2001531; rev:12;)

Added 2010-06-23 13:46:05 UTC

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alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host\:"; nocase; content:".c4tdownload.com"; within:26; nocase; classtype: trojan-activity; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; reference:url,doc.emergingthreats.net/bin/view/Main/2001531; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_C4tdownload.com; sid: 2001531; rev:12;)

Added 2009-02-08 17:30:23 UTC

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alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host\:"; nocase; content:".c4tdownload.com"; within:26; nocase; classtype: trojan-activity; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; reference:url,doc.emergingthreats.net/bin/view/Main/2001531; reference:url,www.emergingthreats.net/cgi-bin/cvsweb.cgi/sigs/MALWARE/MALWARE_C4tdownload.com; sid: 2001531; rev:12;)

Added 2009-02-08 17:30:23 UTC

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alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host\:"; nocase; content:".c4tdownload.com"; within:26; nocase; classtype: trojan-activity; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; sid: 2001531; rev:11;)

Added 2008-01-28 17:24:16 UTC

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alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg:"ET MALWARE C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host\:"; nocase; content:".c4tdownload.com"; within:26; nocase; classtype: trojan-activity; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; sid: 2001531; rev:11;)

Added 2008-01-28 17:24:16 UTC

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alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg: "BLEEDING-EDGE MALWARE C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host\:"; nocase; content:".c4tdownload.com"; within:26; nocase; classtype: trojan-activity; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; sid: 2001531; rev:10;)

Added 2007-04-27 09:30:25 UTC

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alert tcp $HOME_NET any -> $EXTERNAL_NET $HTTP_PORTS (msg: "BLEEDING-EDGE MALWARE C4tdownload.com Access, Likely Spyware"; flow: to_server,established; content:"Host\:"; nocase; content:".c4tdownload.com"; within:10; nocase; classtype: trojan-activity; reference:url,sarc.com/avcenter/venc/data/adware.clickdloader.b.html; sid: 2001531; rev:9;)

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