I’m still learning security, so please forgive if this is a “stupid” question—and feel free to refer me to the appropriate place for RTFM on this.
I spotted this in my log files:
Apr 28 05:34:45 myhost rpc.statd[807]: gethostbyname error for ^X???^X???^Z???^Z???
%8x%8x%8x%8x%8x%8x%8x%8x%8x%62716x%hn%51859x%hn\220\220\220\220\220\220\220\220\…[the \220 just repeats for dozens of lines].
I’m also noticing periodically that I get e-mails with many unprintable characters, and no message associated. Sometimes, though, these unprintable characters appear throughout the e-mail, interspersed with HTML tags.
Are these instances of people sending from countries that use a different character set? Or attempts to cause some kindof panic, buffer overflow or gain shell access?
Thanks, in advance, for any advice!