North American Network Operators Group
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RE: RPC errors

  • From: Kevin Houle
  • Date: Mon Aug 11 17:35:47 2003

--On Monday, August 11, 2003 02:26:40 PM -0700 Mike Damm <[email protected]> wrote:

The DCOM exploit that is floating around crashes the Windows RPC service
when the attacker closes the connection to your system after a successful
attack. Best bet is to assume any occurrence of crashing RPC services to
be signs of a compromised system until proven otherwise.

http://www.cert.org/advisories/CA-2003-19.html

That's good advice. Many of the known exploits cause the RPC service
to crash after the exploit is successful. I'll point out that not all
exploits cause the service failure. So, the absence of an RPC service
failure is likewise not an indicator that a vulnerable machine has
escaped compromise.

Kevin