Phishing with Worms Twenty Years of Digital Threats—What Have We Learned and Where Are We Now?

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Presentation transcript:

Phishing with Worms Twenty Years of Digital Threats—What Have We Learned and Where Are We Now?

WORMS The worst and the worser

Is it a worm, virus, or trojan? Malware is a general term. Trojans hide as another program.  Trojan disguises itself as another program with value.  Might disguise itself as a free tool for editing photos. Virus hides within another program.  Infected program may or may not still operate after the attack. Worms hide without disguise.  Worm is the entity.  It self-installs.

Back “in the day” Worms travelled by floppy. Transmission rates were slow. Still some worms became widespread.

Assimulation Worm infected machines assemble themselves into collective “botnets” capable of sending spam, and crunching passwords.

The Collectives BotnetCollective Spam rate Name Machines (billions/day)‏ Conficker20 million 10 Kraken500,000 9 Srizbi450, Bobax185,000 9 Rustock150, Cutwail125, Storm85,000 (peak 1.5 million) 3

What to do with a botnet Spam engine Password/Encryption hacking Bank fraud, identity theft Criminal computing enterprises Decentralized computing Huge bandwidth potential More computing cycles than top ten mainframes

Storm botnet Evades tracking, morphs Takes defensive measures – known to launch denial of service attack against suspected investigators Summer of 2007, Storm forces Estonia “off the web.” Key servers for the baltic nation moved offline for extended period included government, banking, media, and police sites. Once involved 1.5 million computers

Conficker : new guy on the block DateEstimated Infections Dec 1, ,000 Dec 2, 2008less than million Dec 4, million Dec 5, million Jan 17, million Jan 23, million Jan 26, million

Conficker Payload Delivery FlashDrive  Auto run  Default action Autorun / AutoPlay  Hard to turn off  Registry editing Network  Password guessing  Weak passwords

Microsoft's Part Announced a fix in October Apparently not everyone installed the update Malicious Software Removal Tool Worm may block  access to MS Update  antivirus from updates  Windows Defender or turn it off

What does the worm do? We don't know It seems to be waiting for orders

What can you do? Update Windows Regularly Apply MS Disable Autoplay / AutoRun Run the Malicious Software Removal tool available from

You might have conficker if... You cannot connect to websites or online services that contain the following strings: virus spyware malware rootkit defender microsoft symantec norton mcafee trendmicro sophos panda etrust networkassociates computerassociates f- secure kaspersky jotti f-prot nod32 eset grisoft drweb centralcommand ahnlab esafe avast avira quickheal comodo clamav ewido fortinet gdata hacksoft hauri ikarus k7computing norman pctools prevx rising securecomputing sunbelt emsisoft arcabit cpsecure spamhaus castlecops threatexpert wilderssecurity windowsupdate

You might have conficker if... The following services are disabled or fail to run: Windows Security Center Service Windows Update Auto Update Service Background Intelligence Transfer Service Windows Defender Error Reporting Service Windows Error Reporting Service