A laughing RAT: CrystalX combines spyware, stealer, and prankware features


In March 2026, Kaspersky researchers discovered an active campaign promoting previously unknown malware in private Telegram chats. The Trojan was offered as a MaaS (malware‑as‑a‑service) with three subscription tiers.

It caught the researchers attention because of its extensive arsenal of capabilities. On the panel provided to third‑party actors, in addition to the standard features of RAT‑like malware, a stealer, keylogger, clipper, and spyware are also available. Most surprisingly, it also includes prankware capabilities: a large set of features designed to trick, annoy, and troll the user. Such a combination of capabilities makes it a rather unique Trojan in its category. Kaspersky’s products detect this threat as Backdoor.Win64.CrystalX.*, Trojan.Win64.Agent.*, Trojan.Win32.Agentb.gen.

Read more…
Source: Kaspersky


Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox


Related:

  • Twitter API Abused to Uncover User Identities

    February 4, 2020

    Twitter said that malicious actors, with potential ties to state-sponsored groups, were abusing a legitimate function on its platform to unmask the identity of users. The social media giant said that on Dec. 24, 2019, it discovered a large network of fake accounts abusing a legitimate API (application programming interface) function on its platform that, when ...

  • U.S. Battleground County Website Security Survey

    February 3, 2020

    Today McAfee released the results of a survey of county websites and county election administration websites in the 13 states projected as battleground states in the 2020 U.S. presidential elections. We found that significant majorities of these websites lacked the official government .GOV website validation and HTTPS website security measures to prevent malicious actors from launching copycat web domains ...

  • Only three of the Top 100 international airports pass basic security checks

    February 3, 2020

    Only three of the world’s Top 100 international airports pass basic security checks, according to a report published last week by cyber-security firm ImmuniWeb. The three are the Amsterdam Schiphol Airport in the Netherlands, the Helsinki Vantaa Airport in Finland, and the Dublin International Airport in Ireland. According to ImmuniWeb, these three “may serve a laudable example not just to the ...

  • TrickBot Switches to a New Windows 10 UAC Bypass to Evade Detection

    February 3, 2020

    The TrickBot trojan has evolved again to bolster its ability to elude detection, this time adding a feature that can bypass Windows 10 User Account Control (UAC) to deliver malware across multiple workstations and endpoints on a network, researchers have discovered. Researchers at Morphisec Labs team said they discovered code last March that uses the Windows ...

  • EKANS Ransomware and ICS Operations

    February 3, 2020

    EKANS ransomware emerged in mid-December 2019, and Dragos published a private report to Dragos WorldView Threat Intelligence customers early January 2020. While relatively straightforward as a ransomware sample in terms of encrypting files and displaying a ransom note, EKANS featured additional functionality to forcibly stop a number of processes, including multiple items related to ICS ...

  • Threat Actors Still Exploiting SharePoint Vulnerability to Attack Middle East Government Organizations

    February 3, 2020

    On September 10, 2019, we observed unknown threat actors exploiting a vulnerability in SharePoint described in CVE-2019-0604 to install several webshells on the website of a Middle East government organization. One of these webshells is the open source AntSword webshell freely available on Github, which is remarkably similar to the infamous China Chopper webshell. On January 10, 2020, we ...