interpersonal contact Including collaborators SIGINT(SIGnals INTelligence) Wiretapping Shortwave communication and satcom PRISM Upstream Elephant Cage and ECHELON of Misawa base https://www.google.co.jp/maps/@40.7203821,141.3233764,1281m/data=!3m1!1e3
source Newspaper, Television, Radio, Books, Internet, etc Note: Public information may be incorrect. etc MASINT(Measurement And Signatures INTelligence) TECHINT(TECHnical INTelligence)
servers information WikiLeaks CIA director John Brennan emails within one month Domain name of some supposedly Emdivi C2 server http://pastebin.com/j4a1xxtR https://wikileaks.org/cia-emails/
APT of reports, etc. Indicator is public in CSV, JSON, yara format. For example, it is possible to match APT Notes’s indicator with collected information(domain name, IP address, etc.) If you do not match the information, there is a possibility of nobody knows campaign or attacker.
Points It is difficult for the information to be checked for correct. For example, it is difficult to understand only malware information. So we need to investigate combined mails, tools, malwares and C2 servers, etc. When investigating, there is a need to be aware of remaining log. When the sample is large, such as malware, survey of accuracy is improved.