Unpacking the Wannacry Ransomware Attack

🔍Wannacry was a ransomware attack that infected over 300,000 computers worldwide.

🔐Once infected, Wannacry would encrypt files and demand a ransom, threatening to delete the files after 7 days.

🔎The attack targeted both individuals and organizations, impacting companies like Boeing, Hitachi, TSMC, and Renault.

👨‍💻The attack utilized a vulnerability in the Windows operating system, specifically targeting outdated versions.

⚙️Wannacry had multiple modules, including a ransomware module and a worm module for spreading across networks.

How did Wannacry spread?

—Wannacry spread through various channels, primarily by exploiting a vulnerability in the Windows operating system and using the EternalBlue exploit.

How much ransom did Wannacry demand?

—Wannacry demanded a ransom of $300 in Bitcoin for each infected computer, with the threat of increased payment after 7 days.

Did paying the ransom guarantee file recovery?

—There was no guarantee that paying the ransom would result in file recovery. It was advised not to pay the ransom and seek professional assistance instead.

Were there any successful attempts to stop Wannacry?

—Yes, a kill switch domain was discovered, which effectively halted the spread of Wannacry. The domain registration was accidental but ended up being a fortunate discovery.

How can individuals and organizations protect themselves from ransomware attacks?

—To protect against ransomware attacks, individuals and organizations should ensure their systems are up to date, have strong security measures in place, regularly backup important files, and educate employees on safe online practices.

00:00Introduction to the Wannacry ransomware attack and its impact

00:58Demonstration of the initial infection vector and behavior of Wannacry

02:00Analyzing the binary and uncovering key functions and variables

06:00Investigating the kill switch domain and its accidental discovery

08:14Analyzing the embedded resource extracted from Wannacry