1 / 18

Ransomware

Ransomware. Pirating Cyber Style. Overview. What is Ransomware ? History CryptoLocker BlackHole Exploit Kit. Ransomware. Stops PC from Running Often Called “FBI Moneypak ” or “FBI Virus” Two Types Lock Screen Ransomware Locks Screen so System Cannot be Used Encryption Ransomware

bryant
Download Presentation

Ransomware

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Ransomware Pirating Cyber Style

  2. Overview • What is Ransomware? • History • CryptoLocker • BlackHole Exploit Kit

  3. Ransomware • Stops PC from Running • Often Called “FBI Moneypak” or “FBI Virus” • Two Types • Lock Screen Ransomware • Locks Screen so System Cannot be Used • Encryption Ransomware • Locks Files so They Cannot be Accessed • Uses Scare Tactics • Goal Extort Money from Victim

  4. History • PC Cyborg Trojan • Creator Dr. Joseph Popp • Released 1989 • Encrypt All Files on C Drive • Krotten • Released 2006 • Disabled Nearly All Files • Preyed on Windows Directory

  5. History • WinLock • Originated in Russia • Restricts Access to System • Displays Pornographic Images • Reveton • First Seen in 2012 • “Police Trojan” • Engaged in Illegal Activity • Send Fee

  6. History • CryptoLocker • First Seen 2013 • Use 2048-Bit RSA Key • Private Key Held Threatened Erase • Most Common Infection Mode – E-Mail Attachment • Will Run in Safe Mode

  7. CryptoLocker

  8. CryptoLocker

  9. CryptoLocker • Found to have used 2764 unique victim IP's contacting the sinkholeddomains • Highest number was recorded on Wednesday October 16, with 1266 unique IP addresses

  10. CryptoLocker • Top 30 countries infected

  11. CryptoLocker • Countermeasures • Do Not Open Attachments Unless Source is Verified • Up-to-Date Antivirus – Maybe to Late • Configure System so CryptoLocker Cannot Run • Block Executables from Running in %AppData% Directory • Block Executables from Running in %AppData%\* Directory • Block WinRAR Attachments from Opening %Temp%\Rar\*.exe • Block 7zip Attachments from Opening %Temp%\7z\*.exe • Block WinZip Attachments from Opening %Temp%\wz*\*.exe • Block Built-in Zip Support from Opening %Temp%\*.zip\*.exe

  12. BlackHole Exploit Kit • Launched in late 2010 – Russian Hacker • Currently Most Popular Exploit Kit • MySQL Backend • Auto Update • Contains Many Recent Java Exploits • Contains Exploit for CVE-2012-1889 (MS XML) • 0-Day at the time • Good JavaScript Obfuscation • Many Different Payloads can be Carried

  13. BlackHole Exploit Kit • How It Works:

  14. BlackHole Exploit Kit • August to September 2012 Payloads: Money Collecting Information Stealing Click Fraud

  15. Conclusions • Best Option, Avoid Getting Infected • Keep Good Backups – Even in Homes • Avoid Paying Ransom • Paying Only Encourages More Ransomware / Malware

  16. References • History: http://www.microsoft.com/security/portal/mmpc/shared/ransomware.aspx http://nakedsecurity.sophos.com/2013/02/26/technical-paper-exploring-the-history-and-technology-of-ransomware/ http://www.computerweekly.com/news/2240102909/Ransomware-and-computer-blackmail-viruses-a-history http://ezfimblog.com/2013/10/28/cryptolocker-rears-its-ugly-head-a-history-of-ransomware/ http://www.theoaklandpress.com/lifestyle/20131103/how-to-break-your-computer-free-of-ransomware

  17. References • Reveton: http://threatpost.com/reveton-ransomeware-adds-password-purloining-function • CryptoLocker: http://www.virusbtn.com/blog/2013/11_18.xml?rss http://www.securelist.com/en/blog/208214109/CryptoLocker_Wants_Your_Money http://www.thirdtier.net/downloads/NewCryptolockerWarning.pdf http://www.thirdtier.net/downloads/CryptolockerWaystoaddExemptions.pdf

  18. References • Blackhole: http://nakedsecurity.sophos.com/2012/03/29/exploring-the-blackhole-exploit-kit/ http://nakedsecurity.sophos.com/exploring-the-blackhole-exploit-kit/ http://krebsonsecurity.com/tag/blackhole-exploit-kit/ http://nakedsecurity.sophos.com/2012/11/30/technical-paper-blackhole/ http://nakedsecurity.sophos.com/2013/01/16/technical-paper-black-hole-2/ http://media.blackhat.com/bh-us-12/Briefings/Jones/BH_US_12_Jones_State_Web_Exploits_Slides.pdf

More Related