250,000 stolen MySQL databases auctioned on the dark web

Hackers are thought to have obtained 7TB of stolen data using the PLEASE_READ_ME ransomware campaign

A quarter of a million databases stolen from tens of thousands of breached MySQL servers are being offered for sale on the dark web, according to security researchers from Guardicore Labs.

Hackers are believed to have obtained 7TB of stolen data using the PLEASE_READ_ME ransomware campaign, successfully targeting around 83,000 MySQL database servers.

PLEASE_READ_ME has reportedly been active since January 2020, attacking weak credentials on internet-facing MySQL servers.

Since then, Guardicore Global Sensors Network (GGSN) reported 92 attacks, with numbers rising sharply in October. According to Guardicore researchers, the ransomware attacks originated from 11 different IP addresses, most of which were found to be located in the UK and Ireland.

The ransomware campaign is untargeted, meaning that it attempts to infect any of the five million MySQL servers which are internet-facing. Hackers exploit weak credentials and are able to re-access the network by leaving a backdoor user on the database for persistence.

Guardicore Labs researchers managed to discover two different variants during the lifetime of this campaign. The first, which lasted from January to the end of November, saw attackers leaving their victims a ransom note with their wallet address, the amount of Bitcoin to pay, as well as an email address for technical support, with 10 days being given to make the payment. 

The second variant, which began on 3 October and also lasted until late November, got rid of the Bitcoin wallet payments and email communications. Instead, hackers opted for a website in the Tor network to receive payments and used unique alphanumeric tokens, outlined in the ransom notes, to identify the victims.

In a blog post detailing the discovery, security researchers  Ophir Harpaz and Omri Marom said that the “PLEASE_READ_ME operators are trying to up their game by using double extortion in scale”. 

“Factoring their operation will render the campaign more scalable and profitable. Guardicore Labs provides an IOCs repository and will keep monitoring this campaign to help organizations protect against it,” they added.

Featured Resources

Choosing a collaboration platform

Eight questions every IT leader should ask

Download now

Performance benchmark: PostgreSQL/ MongoDB

Helping developers choose a database

Download now

Customer service vs. customer experience

Three-step guide to modern customer experience

Download now

Taking a proactive approach to cyber security

A complete guide to penetration testing

Download now

Recommended

Geico data breach leads to stolen driver’s license numbers
data breaches

Geico data breach leads to stolen driver’s license numbers

21 Apr 2021
UK’s IoT security regulation will also include smartphones
Internet of Things (IoT)

UK’s IoT security regulation will also include smartphones

21 Apr 2021
eBay, Apple, Microsoft, Facebook, and Google were phishers’ top targets in 2020
phishing

eBay, Apple, Microsoft, Facebook, and Google were phishers’ top targets in 2020

20 Apr 2021
Mastering endpoint security implementation
Security

Mastering endpoint security implementation

16 Apr 2021

Most Popular

Microsoft is submerging servers in boiling liquid to prevent Teams outages
data centres

Microsoft is submerging servers in boiling liquid to prevent Teams outages

7 Apr 2021
How to find RAM speed, size and type
Laptops

How to find RAM speed, size and type

8 Apr 2021
UK exploring plans to launch its own digital currency
digital currency

UK exploring plans to launch its own digital currency

19 Apr 2021