UC Santa CruzInformation Technology Services

Security Tips and Tools

Passwords

Making a Secure and Memorable Password


General Security Tips

Software
  • McAfee's Avert Stinger. Stinger is a stand-alone utility from McAfee used to detect and remove specific viruses. It is not a substitute for full anti-virus protection. Please refer to the McAfee information page.
  • Sasser Worm from Microsoft. Sasser is a worm which attempts to exploit the LSASS vulnerability described in MicroSoft Security Bulletin MS04-011. This worm spreads by scanning IP addresses for vulnerable systems.
  • Local copy of the Qhost Removal tool from Symantec. Trojan.Qhost is a trojan horse that will modify the TCP/IP settings of an infected computer to a different DNS server. Trojan.Qhost More Information
    (md5 checksum: e734b3628765cecbe0046ae8897c78da)
  • Local Copies of the Blaster and Welchia/Nachi worm tools. The recent discovery of major flaws in Microsoft's implementation of the Remote Procedure Call (RPC) protocol has led to these worms which exploit the same flaw. Here you will find local copies of tools and instructions for removing these worms from your computer.
  • PasswordSafe. Free Windows 9x/2000 utility that allows users to keep their passwords securely encrypted on their computers.
  • SSH (Secure Shell). Enables secure terminal sessions and file transfers to and from ssh-enabled servers. It also enables the secured use of networked applications over untrusted networks.
  • PGP (Pretty Good Privacy). Provides secure data storage and secure messaging for individuals using mainstream email applications.
  • Free Personal Firewalls. Protects systems from intruders while preventing unauthorized access from your system to a network (containment).
  • TCPView. This tool, for Windows 9x, Windows NT (4/5) and Windows XP, will graphically show all active network connections on your computer and the programs that are holding those connections open. This can be useful for finding out which programs are opening network connections and who they are communicating with (typically, trojan software will open a network connection to a controlling server so that it can receive commands).
  • PsTools: This is a collection of utilities for Windows NT (4/5) and Windows XP provides, via the command line, the functionality of several unix utilities such as "ps" and "kill". Sorry, there's no Windows 9x version.