HelloXD Ransomware Installing Backdoor on Targeted Systems

The ransomware family is no exception to the norm in that the operators follow the tried-and-tested approach of double extortion to demand cryptocurrency payments by exfiltrating a victim’s sensitive data in addition to encrypting it and threatening to publicize the information.

The implant in question, named MicroBackdoor, is an open-source malware that’s used for command-and-control (C2) communications, with its developer Dmytro Oleksiuk calling it a “really minimalistic thing with all of the basic features in less than 5,000 lines of code.”

Notably, different variants of the implant were adopted by the Belarusian threat actor dubbed Ghostwriter (aka UNC1151) in its cyber operations against Ukrainian state organizations in March 2022.

MicroBackdoor’s features allow an attacker to browse the file system, upload and download files, execute commands, and erase evidence of its presence from the compromise machines.
It’s suspected that the deployment of the backdoor is carried out to “monitor the progress of the ransomware.”

Unit 42 said it linked the likely Russian developer behind HelloXD – who goes by the online aliases x4k, L4ckyguy, unKn0wn, unk0w, _unkn0wn, and x4kme – to further malicious activities such as selling proof-of-concept (PoC) exploits and custom Kali Linux distributions by piecing together the actor’s digital trail.

“x4k has a very solid online presence, which has enabled us to uncover much of his activity in these last two years,” the researchers said.
“This threat actor has done little to hide malicious activity, and is probably going to continue this behavior.”

Sign Up For Threat Alerts

Loading...
Threats Icon

Jun 30, 2022

YTStealer Malware: YouTube Cookies! Om Nom Nom...

The Dark Web Market for YouTube Account Access In 2006, the term "data is the...

Threats Icon

Jun 27, 2022

Bronze starlight Ransomware Operations Use HUI Loader

The BRONZE RIVERSIDE threat group is likely responsible for stealing intellectual property from Japanese organizations....

Threats Icon

Jun 27, 2022

The Black Basta ransomware is a new...

Although active for just two months, the group already rose to prominence claiming attribution of...

Threats Icon

Jun 27, 2022

Gallium APT Group

Researchers from Palo Alto Networks defined the PingPull RAT as a "difficult-to-detect" backdoor that leverages...

Threats Icon

Jun 26, 2022

US Cert Alert – Malicious Cyber Actors...

The Cybersecurity and Infrastructure Security Agency (CISA) and United States Coast Guard Cyber Command (CGCYBER)...

Threats Icon

Jun 23, 2022

Matanbuchus: Malware-as-a-Service with Demonic Intentions

A new malware-as-a-service (MaaS) called Matanbuchus Loader was discovered in underground markets by Unit42. Malware...

Threats Icon

Jun 22, 2022

Websites Hosting Fake Cracks Spread Updated CopperStealer...

Analysts noticed a new version of CopperStealer and analyzed these samples to be related to...

Threats Icon

Jun 21, 2022

Symbiote Deep-Dive: Analysis of a New, Nearly-Impossible-to-Detect...

Symbiote is a shared object (SO) library that is loaded into all running processes using...

Threats Icon

Jun 16, 2022

Panchan’s Mining Rig: New Golang Peer-to-Peer Botnet

Akamai security researchers discovered Panchan, a new peer-to-peer botnet and SSH worm that emerged in...

Threats Icon

Jun 15, 2022

PureCrypter: A Fully-Functional Loader Distributing Remote Access...

PureCrypter is a fully-featured loader being widely sold The malware has been observed distributing a...

Threats Icon

Jun 14, 2022

CERT-IL Alert: an active phishing campaign in...

Recently new information was passed to the CERT-IL team indicating that there is an active...

Threats Icon

Jun 13, 2022

Follina suspected state aligned phishing campaign

Proofpoint blocked a suspected state aligned phishing campaign targeting European gov & local US gov...

Threats Icon

Jun 09, 2022

Newly-Discovered Chinese-linked APT Has Been Quietly Spying...

Cado Labs regularly analyses attacks targeting services running within a honeypot infrastructure. One recent attack...

Threats Icon

Jun 08, 2022

Active Exploitation of Confluence CVE-2022-26134

Atlassian published a security advisory for CVE-2022-26134, a critical unauthenticated remote code execution vulnerability in...

Threats Icon

Jun 07, 2022

Msiexec Impersonation – Exploit Leads to Data...

In this multi-day intrusion, The DFIR Report observed a threat actor gain initial access to...