I would think it means code that front-ends one of the First Level Interrupt Handlers, rather like the one that CA was using in 1996 (are they still using it?) to front-end program interrupts so that various CA products could easily become authorized by merely executing a particular invalid operation code. Doing this in the program FLIH made disassembling their code a little tricky, because the program new interrupt routine runs with DAT off, so it was not a no-brainer to find and display their code in storage.
Bill Fairchild Rocket Software -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Lindy Mayfield Sent: Thursday, October 14, 2010 10:44 AM To: [email protected] Subject: Re: Mainframe hacking? What would constitute a "root kit" for MVS? Perhaps an SVC with some hidden functionality? -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of David Cole Sent: Thursday, October 14, 2010 5:08 PM To: [email protected] Subject: Re: Mainframe hacking? I read that article, and it is a good one. Interestingly (to me at least), on the article's third web page, there is an excerpt from a post I made here in 2006. It's nice to know that someone is paying attention. My entire post can be found at: http://bama.ua.edu/cgi-bin/wa?A2=ind0608&L=IBM-MAIN&P=R63457&X=147B1F23465267AA41&Y=dbcole%40colesoft.com I think the information in that post are highly relevant to the current thread. Dave Cole REPLY TO: [email protected] ColeSoft Marketing WEB PAGE: http://www.colesoft.com 736 Fox Hollow Road VOICE: 540-456-8536 Afton, VA 22920 FAX: 540-456-6658 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
