Antivirus Firm Symantec confirms the existence of vulnerabilities in some of their products. The vulnerability is caused due to an unspecified error when handling certain document files. Malware is known to be used to target the Asia-Pacific region with government sectors being the primary targets. A patch is available from the Ichitaro Web site to fix the vulnerability on the relevant products. Attackers are distributing malware with spear phishing attack, as email attachments with the Ichitariano file extension.jtd, the files are actually.
Source: https://thehackernews.com/2013/11/Japanese-Ichitaro-zero-day-vulnerability-CVE-2013-5990.html