Wednesday, May 21, 2025
HomeBackdoorNewly Discovered Hacking Tools Remotely control the Hacked Computers via a GUI...

Newly Discovered Hacking Tools Remotely control the Hacked Computers via a GUI & Command-Line Interface

Published on

SIEM as a Service

Follow Us on Google News

Researchers discovered two new malicious hacking tools (BalkanRAT, BalkanDoor) from the ongoing campaign Balkans that act as a remote access trojan and backdoor.

Malware authors developed these Tools with two different features. BalkanRAT, a remote access trojan that controls the compromised computer remotely via a graphical interface and the BalkanDoor performing the same operation using the command-line interface.

Based on the telemetry data that learned by ESET researchers, Balkans campaign spreading these tools since 2016 to various countries Croatia, Serbia, Montenegro, and Bosnia and Herzegovina and very recently the campaign detection on July 2019.

- Advertisement - Google News

Threat actors using malicious with a weaponized file attachment, links, decoy PDFs as a spreading mechanism and plant both tools in targeted victims computer to gain the complete control of it.

Both tools are digitally signed with various certificates, and it runs as a Windows service that helps to unlock the Windows logon screen remotely and take over of the highest privilege of the infected system.

Infection Process Balkans Campaign

A malspam emails distributed with a link that posed a legitimate website of official institutions and Prompt to drop a malicious file.

A dropped malicious file that linked to PDF executable which is a WinRAR self-extractor and it acts as a legitimate PDF to fool the victims.

Once it executed, the malicious PDF unpack its content and silently execute either BalkanRAT or BalkanDoor.

A very recent BalkanDoor that detected in this year distributed as an ACE archive that specially crafted to exploit the WinRAR ACE vulnerability CVE-2018-20250.

Attacker mostly deploys both tools in the same target system, through which, an attack control the system via both graphical interface and command-line.

According to ESET research, The attacker detects that the victim has their screen locked and thus, most probably, is not using the computer (either via BalkanDoor sending screenshot showing that computer is locked, or via the View Only mode of BalkanRAT). Via the BalkanDoor backdoor, the attacker sends a backdoor command to unlock the screen… and using BalkanRAT, they can do whatever they want on the computer.

There is no exfiltration channel found in BalkanDoor backdoor tool, attackers would need an exfiltration channel for uploading the collected data or they would manually backup the to send it to the attacker.

BalkanDoor Backdoor

  1. Simple backdoor with a small number of commands to the remote shell, take a screenshot
  2. Perform automatic tasks on victims computer and control several computers at once.
  3. BalkanDoor let the computer connects to a C&C server, identifying itself by the computer name and requesting the commands
  4. Connects via both HTTP or HTTPS protocol
  5. Performing repeated connecting attempt via proxy If the connection is not successful.
  6. it capable of Unlocks the screen, Creates a remote shell and redirects its input/output to the specified IP address and passwordless screen-unlocking.

BalkanRAT – Remote Access Trojan

  1. Most powerful and complex compared than BalkanDoor.
  2. Deploy a copy of the Remote Utility software is an ultimate goal.
  3. IT used for remote access to a computer or for remote administration
  4. The dropper opens the PDF file so as not to arouse suspicion of the user.
  5. The core component acts as a keylogger.
  6. Since BalkanRAT misuses genuine Remote Utilities, communication seems to be legitimate.

“Both BalkanRAT and BalkanDoor have some interesting tricks up their sleeves and each of them separately pose a significant risk to the victims. If used together as a toolset, they make an even more powerful weapon – the more the campaign we have discovered targets accounting, a function that is critical for organizations.” ESET said.

Sponsored:  – Manage all the Endpoint networks from a single Console.

You can follow us on LinkedinTwitterFacebook for daily Cybersecurity updates also you can take the Best Cybersecurity course online to keep yourself updated.

Balaji
Balaji
BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

Latest articles

Ivanti EPMM 0-Day RCE Vulnerability Under Active Attack

Ivanti's Endpoint Manager Mobile (EPMM) contains a critical vulnerability chain that has been actively...

Atlassian Alerts Users to Multiple Critical Vulnerabilities Affecting Data Center Server

Atlassian has released its May 2025 Security Bulletin addressing eight high-severity vulnerabilities affecting multiple...

Cybercriminals Could Leverage Google Cloud Platform for Malicious Activities

A Research by Tenable and Cisco Talos has shed light on a critical vulnerability...

Malicious Hackers Create Fake AI Tool to Exploit Millions of Users

A concerning development in the field of cybersecurity is the initiation of a sophisticated...

Resilience at Scale

Why Application Security is Non-Negotiable

The resilience of your digital infrastructure directly impacts your ability to scale. And yet, application security remains a critical weak link for most organizations.

Application Security is no longer just a defensive play—it’s the cornerstone of cyber resilience and sustainable growth. In this webinar, Karthik Krishnamoorthy (CTO of Indusface) and Phani Deepak Akella (VP of Marketing – Indusface), will share how AI-powered application security can help organizations build resilience by

Discussion points


Protecting at internet scale using AI and behavioral-based DDoS & bot mitigation.
Autonomously discovering external assets and remediating vulnerabilities within 72 hours, enabling secure, confident scaling.
Ensuring 100% application availability through platforms architected for failure resilience.
Eliminating silos with real-time correlation between attack surface and active threats for rapid, accurate mitigation

More like this

Hazy Hawk Targets DNS Vulnerabilities to Hijack Cloud Resources and Spread Malware

The threat actor gained attention in February 2025 after successfully hijacking a subdomain of...

More_Eggs Malware Uses Job Application Emails to Distribute Malicious Payloads

The More_Eggs malware, operated by the financially motivated Venom Spider group (also known as...

Hackers Use Weaponized RAR Archives to Deliver Pure Malware in Targeted Attacks

Russian organizations have become prime targets of a sophisticated malware campaign deploying the Pure...