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New ‘Agenda’ Ransomware Personalized for Every Sufferer

By Ionut Arghire on August 26, 2022

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Cybersecurity firm Pattern Micro is elevating the alarm on a brand new ransomware household known as Agenda, which has been utilized in assaults on organizations in Asia and Africa.

Written within the Golang (Go) cross-platform programming language, the risk has the power to reboot methods in secure mode and to cease server-specific processes and providers.

Agenda targets Home windows-based methods and has been utilized in assaults towards healthcare and schooling organizations in Indonesia, Saudi Arabia, South Africa, and Thailand.

Extra importantly, Pattern Micro says the noticed samples have been custom-made for every sufferer, with the requested ransom quantity being totally different for every sufferer as properly – it ranges between $50,000 and $800,000.

“Each ransomware pattern was custom-made for the meant sufferer. Our investigation confirmed that the samples had leaked accounts, buyer passwords, and distinctive firm IDs used as extensions of encrypted information,” Pattern Micro notes.

The cybersecurity agency additionally found Agenda-related darkish internet discussion board posts by a person named ‘Qilin’ and believes that the risk actor may be providing the ransomware to associates seeking to customise payloads with sufferer particulars, together with IDs, RSA keys, and the processes and providers to be killed earlier than encryption.

Agenda helps a number of command-line arguments, builds a runtime configuration to outline its conduct, removes shadow quantity copies, terminates varied antivirus processes and providers, and creates an auto-start entry pointing at a duplicate of itself.

Furthermore, the ransomware modifications the default person’s password after which allows computerized login utilizing the modified credentials. It reboots the machine in secure mode and begins encrypting information upon reboot.

As a part of one assault, the adversary used a public-facing Citrix server for preliminary compromise, seemingly through a sound account, and used the server to entry the sufferer’s community. The ransomware pattern that was deployed two days later was configured with legitimate and privileged accounts.

The adversary additionally used leaked credentials to connect with Lively Listing through the distant desktop protocol (RDP), and put in scanning instruments similar to Nmap.exe and Nping.exe, to map the community. It additionally created a Group Coverage Object (GPO) and deployed ransomware on all machines.

“The ransomware additionally takes benefit of native accounts to go browsing as spoofed customers and execute the ransomware binary, additional encrypting different machines if the logon try is profitable. It additionally terminates quite a few processes and providers, and ensures persistence by injecting a DLL into svchost.exe,” Pattern Micro notes.

The cybersecurity agency has recognized similarities between Agenda and well-known ransomware households, together with Black Basta, Black Matter, and REvil (aka Sodinokibi).

Particularly, Agenda’s fee web site and the person verification applied on its Tor web site resemble these of Black Basta and Black Matter, whereas the power to alter Home windows passwords and reboot methods in secure mode is just like Black Basta and REvil.

Associated: Ransomware, Malware-as-a-Service Dominate Menace Panorama

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