In what’s an occasion of hacking the hackers, risk hunters have managed to infiltrate the web infrastructure related to a ransomware group referred to as BlackLock, uncovering essential details about their modus operandi within the course of.
Resecurity stated it recognized a safety vulnerability within the information leak website (DLS) operated by the e-crime group that made it potential to extract configuration recordsdata, credentials, in addition to the historical past of instructions executed on the server.
The flaw issues a “sure misconfiguration within the Information Leak Website (DLS) of BlackLock Ransomware, resulting in clearnet IP addresses disclosure associated to their community infrastructure behind TOR hidden providers (internet hosting them) and extra service data,” the corporate said.
It described the acquired historical past of instructions as one of many largest operational safety (OPSEC) failures of BlackLock ransomware.
BlackLock is a rebranded model of one other ransomware group referred to as Eldorado. It has since grow to be some of the energetic extortion syndicates in 2025, closely focusing on expertise, manufacturing, development, finance, and retail sectors. As of final month, it has listed 46 victims on its website.
The impacted organizations are positioned in Argentina, Aruba, Brazil, Canada, Congo, Croatia, Peru, France, Italy, the Netherlands, Spain, the United Arab Emirates, the UK, and the US.
The group, which introduced the launch of an underground affiliate community in mid-January 2025, has additionally been noticed actively recruiting traffers to facilitate early phases of the assaults by directing victims to malicious pages that deploy malware able to establishing preliminary entry to compromised methods.
The vulnerability recognized by Resecurity is an area file inclusion (LFI) bug, basically tricking the net server into leaking delicate data by performing a path traversal assault, together with the historical past of instructions executed by the operators on the leak website.
A few of notable findings are listed under –
- The usage of Rclone to exfiltrate information to the MEGA cloud storage service, in some instances even putting in the MEGA shopper immediately on sufferer methods
- The risk actors have created not less than eight accounts on MEGA utilizing disposable e-mail addresses created by way of YOPmail (e.g., “zubinnecrouzo-6860@yopmail.com”) to retailer the sufferer information
- A reverse engineering of the ransomware has uncovered supply code and ransom observe similarities with one other ransomware pressure codenamed DragonForce, which has targeted organizations in Saudi Arabia (Whereas DragonForce is written in Visible C++, BlackLock makes use of Go)
- “$$$,” one of many principal operators of BlackLock, launched a short-lived ransomware mission referred to as Mamona on March 11, 2025
In an intriguing twist, BlackLock’s DLS was defaced by DragonForce on March 20 – probably by exploiting the identical LFI vulnerability (or one thing comparable) – with configuration recordsdata and inside chats leaked on its touchdown web page. A day prior, the DLS of Mamona ransomware was additionally defaced.
“It’s unclear if BlackLock Ransomware (as a gaggle) began cooperating with DragonForce Ransomware or silently transitioned beneath the brand new possession,” Resecurity stated. “The brand new masters probably took over the mission and their affiliate base due to ransomware market consolidation, understanding their earlier successors may very well be compromised.”
“The important thing actor ‘$$$’ didn’t share any shock after incidents with BlackLock and Mamona Ransomware. It’s potential the actor was absolutely conscious that his operations may very well be already compromised, so the silent ‘exit’ from the earlier mission may very well be probably the most rational choice.”
