Hackers will often attack the most popular programs and platforms to cause maximum damage. With several recent exploitations of Apple's Mac OS X operating system, that may mean that it is no longer just a scary world for Windows users.

	WEEKLY REPORTS Solutions, Prevention & Remedies Top 10 Threats

Oomp.A is a worm that spreads by sending itself to an infected Mac user's iChat contacts in a file called "latestpics.tgz." Once run, the file replaces several Mac system applications with copies of itself, causing errors when the original program is run.

Inqtana.A is another worm affecting computers running Mac OS X systems that have Bluetooth wireless connectivity. It reaches the Mac wirelessly, copying three files onto the system, planting and running rogue program files there.

The worms have not caused major damage, affecting only a handful of users before the threats could be neutralized by Anti-virus companies and security patches. It is recommended that Mac users keep their firewalls and virus protection up to date.

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Worry Watch Plus Online only:

Information, Protection and Prevention -- More About Oomp.A and Inqtana.A
• Panda's Oomp.A Definition

• Panda's Inqtana.A Definition

• Apple

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Latest Security Updates:
Anti-Spyware Product	Latest update	Download Site
Ad-Aware SE	SE1R93 22..02.2006 (Definitions updated February 22, 2006)	Download
Spybot Search and Destroy	Version 1.4 Update 2006-02-17 (Definitions updated February 17, 2006)	Download

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* Reading: Solutions, Prevention & Remedies
Additional summary information related to a specific type of solution or prevention that you should be considering. Depending upon the week, this section may have:
• Recent Windows security releases from Microsoft
• Recent updates to widely used anti-spyware programs
• Recent updates to widely used anti-virus programs
• Recent updates to other security programs & devices (ex: Firewalls, routers)
• Recent updates to various applications in wide use

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Top 10 Threats:
Name	Type	Affects	Alert Level
Sdbot.ftp	Worm	Windows 95, 98, 2000, ME, NT, XP	Low
Netsky.P	Worm	Windows 95, 98, 2000, ME, NT, XP*	Medium
Metafile	Trojan	Windows 95, 98, 2000, ME, NT, XP*	Low
Torpig.AE	Trojan	Windows 95, 98, 2000, ME, NT, XP, 3.X*	Low
Sober.AH	Worm	Windows 98, 2000, ME, NT, XP	Low
Tearec.A	Worm	Windows 95, 98, 2000, ME, NT, XP	Low
Bagle.GS	Worm	Windows 95, 98, 2000, ME, NT, XP*	Low
Gaobot.gen	Worm	Windows 2000, NT, XP*	Low
Alcan.worm	Worm	Windows 95, 98, 2000, ME, NT, XP	Low
Qhost.gen	Trojan	Windows 2000, NT, XP*	Low

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Read: Top Threats
These are viruses that are currently on the watch lists of major anti-virus software companies.

Name
What the threat is called. We use the name given each virus by Panda Software. Sometimes other anti-virus companies give the same threat a different name. Usually they use similar names.

Type
There are different characteristics associated with different types of threats.
• Virus - has the ability to replicate or infect computers or other programs
• Trojan Horse (or Trojan) - appear to be harmless programs when you get them. They unleash their payload when you double-click, open, or execute them.
• Phishing - a Web site or e-maill message posing as another company - usually one you know to fool you into giving the sender personal information.
• Worm - self replicates onto additional disks, computers or networks
• Spyware - installs on your system to collect information about your activity, preferences or interests
• Hoax - false messages sent by e-maill to mislead the recipient
• Backdoors - opens a security hole that allows outsiders to take control of your computer
• Dialer - uses your telephone to dial an outside number - sometimes a number that costs you money when dialed

Affects
Not all viruses affect all types of systems. Some, for example may affect only Windows 98 and 95, but not Windows XP or NT. Others affect all Windows systems, but not Macintosh. In this column, we show you the consumer systems that the threat is known to affect. We don't always include the servers that operate in your company's backroom.

Alert level
The level of awareness that anti-virus vendors suggest you need to have for each threat listed.
For each threat listed, we'll post a corresponding link here, so you can get more information to help you recognize, diagnose, prevent, and repair the problem.