CERT Quarterly Report: Reconnaissance Activity Up
- By Scott Bekker
- June 04, 2001
Better batten down the hatches. In its latest quarterly report, CERT
finds that network reconnaissance activity is on the rise.
"Over the past several weeks, the CERT/CC [Coordination Center] has observed a significant increase in network reconnaissance activity," the Carnegie Mellon-based security organization noted in its report.
CERT attributes some of the traffic to the Sadmind/IIS worm and another worm known as the "cheese" worm.
However, CERT says its data indicates that there is also active scanning going on for known vulnerabilities in other network services and a lot of generalized port scans happening to hosts.
"In order to minimize exposure to this activity, the CERT/CC recommends that sites review and apply vendor-supplied security patches, disable non-critical network services and actively monitor system and network logs for unusual activity," the report recommends.
Reports continue to flood in at CERT of sites affected by the Sadmind/IIS worm. The number of Internet Information Server/Services sites defaced through the use of the self-propogating malicious code has run away to 6,000. CERT also says at least 500 Solaris machines have been compromised by the Sadmind/IIS worm. The worm compromises Solaris machines, which are then used to deface IIS sites.
Scott Bekker is editor in chief of Redmond Channel Partner magazine.