Threat Intelligence Directory

UAC-0255 is a threat actor that conducted a phishing campaign impersonating CERT-UA to distribute the AGEWHEEZE RAT, targeting organizations in Ukraine's public and private sectors. The campaign is part of a broader trend of using trusted identities to enhance victim engagement, as seen in previous activities like UAC-0190 and UAC-0252. CERT-UA identified UAC-0255 after discovering links to the CyberSerp Telegram channel, which claimed responsibility for the attack. The activity is documented under the identifier CERT-UA#21075, with detection rules available for cybersecurity analysts.

Bearlyfy has been attributed to over 70 cyber attacks targeting Russian companies since its emergence in January 2025, employing a custom Windows ransomware strain known as GenieLocker. The group operates with dual objectives of extortion and sabotage, utilizing a modified version of PolyVice and leveraging vulnerabilities in external services and applications for initial access. Analysis reveals overlaps with PhantomCore, indicating a pro-Ukrainian interest, while Bearlyfy's attacks are characterized by minimal preparation and a focus on immediate impact through data encryption and destruction. Approximately 20% of victims reportedly pay the ransom, with demands escalating to hundreds of thousands of dollars.

Malware family tracked by Malpedia. ID: win.pixynet_loader

According to Seqrite, this collector is delivered via a phishing mail and triggers via XSS in an active Zimbra session.

According to Google, GHOSTBLADE is delivered via the DarkSword exploit chain. GHOSTBLADE is a dataminer written in JavaScript that collects and exfiltrates a wide variety of data from a compromised device. Data collected by GHOSTBLADE is exfiltrated to an attacker-controlled server over HTTP(S). Unlike GHOSTKNIFE and GHOSTSABER, GHOSTBLADE is less capable and does not support any additional modules or backdoor-like functionality; it also does not operate continuously. However, similar to GHOSTKNIFE, GHOSTBLADE also contains code to delete crash reports, but targets a different directory where they may be stored.

Malware family tracked by Malpedia. ID: win.venon

According to Zscaler, SnappyClient was first observed in December 2025. It is a C++-based C2 implant with the ability to steal data and provide remote access. SnappyClient employs multiple evasion techniques to hinder endpoint security detection, including an Antimalware Scan Interface (AMSI) bypass, as well as implementing Heaven’s Gate, direct system calls, and transacted hollowing. SnappyClient receives two configuration files from the C2 server, which contain a list of actions to perform when a specified condition is met, along with another that specifies applications to target for data theft. SnappyClient uses a custom network communication protocol that encrypts all network communication using ChaCha20-Poly1305.

Reynolds is a ransomware family first identified in early 2026, notable for embedding BYOVD (Bring Your Own Vulnerable Driver) defense evasion by exploiting CVE-2025-68947 to terminate security software before encrypting files, initially attributed to Black Basta and considered attractive to RaaS affiliates.

According to Nexttron Systems, RegPhantom is a stealthy Windows kernel rootkit designed to give attackers code execution in kernel mode while leaving very little visible evidence behind. The malware abuses the Windows registry as a covert trigger mechanism: a usermode process can send an encrypted command through a registry write, which the driver intercepts and turns into arbitrary kernel-mode code execution.

Malware family tracked by Malpedia. ID: win.moonrise

Malware family tracked by Malpedia. ID: win.greenblood

Z-Pentest Alliance is a pro-Russian hacktivist group known for targeting industrial control systems and operational technology systems, particularly in Italy and Israel. The group has claimed responsibility for various attacks, including gaining control of a water supply management system and disrupting aviation authorities' websites. Z-Pentest Alliance operates within a larger alliance of hacktivist groups, often collaborating on politically motivated operations, including DDoS campaigns. The group has been linked to the GRU and is associated with the NoName057 group, sharing tools and intelligence.

Malware family tracked by Malpedia. ID: js.stoatwaffle

UNC6426 exploited a supply chain compromise of the nx npm package to steal a developer's GitHub Personal Access Token and gain access to a victim's cloud environment. They abused the GitHub-to-AWS OpenID Connect trust to create a new administrator role, leveraging overly permissive permissions associated with the compromised GitHub-Actions-CloudFormation role. Using the legitimate open-source tool Nord Stream, UNC6426 conducted reconnaissance and extracted secrets from CI/CD environments, leading to the exfiltration of files from AWS S3 buckets and data destruction. The actor escalated to full AWS administrator permissions in under 72 hours.

TA2723 is a financially-motivated, high-volume credential phishing threat actor known for spoofing Microsoft OneDrive, LinkedIn, and DocuSign. Proofpoint Threat Research has observed TA2723 conducting OAuth device code phishing campaigns, utilizing tools like Squarephish and Graphish to enhance their operations. The use of these tools allows TA2723 to mitigate the short-lived nature of device codes, facilitating larger campaigns. Successful attacks can lead to M365 account takeover, data exfiltration, and lateral movement.

Keymous is a threat actor known for executing extensive DDoS attacks across multiple Arab countries, targeting government ministries and critical infrastructure. The group has claimed access to sensitive data, including over 300,000 records from Israel's Ministry of Education, and has engaged in reconnaissance activities against various ministries in Bahrain and other nations. Keymous employs diverse infrastructure, including compromised IoT devices and DDoS-for-hire platforms, to amplify attack bandwidth. Their operations have been characterized by a focus on politically motivated cyberattacks, particularly in the context of regional conflicts.

Dark Engine has emerged as a significant threat actor targeting industrial control systems and SCADA systems in sectors such as metallurgy and food processing. The group has conducted multiple ICS-targeted incidents, with a pronounced operational surge in June 2025. Additionally, Dark Engine is involved in a campaign that embeds fraudulent CAPTCHA prompts into legitimate WordPress sites, utilizing SEO poisoning to harvest login credentials. Reports also indicate a data leak from Dark Engine that exposed sensitive phone data in the U.S.

Cyber Islamic Resistance is a hacktivist collective ideologically aligned with Iran, engaging in operations such as website defacements, DDoS attacks, and data exfiltration targeting Israeli and Western entities. They have claimed breaches of Israeli cybersecurity firms and academic platforms, framing their actions as part of a broader narrative of retaliation. The group has also targeted critical infrastructure, asserting access to industrial control systems and operational technology environments. Their activities are often presented as part of a coordinated cyber mobilization campaign, emphasizing psychological and reputational impacts.

Conquerors Electronic Army operates under the “Wa’d al-Akhira” banner and has claimed multiple attacks against Israeli targets, including civil emergency alerting and healthcare sectors, utilizing rented stresser infrastructure and CheckHost proof-of-disruption links. The group has embedded links to a UK-registered charity in their operations, suggesting a potential disruption attempt rather than solely an information operation. Security company Radware identified Conquerors Electronic Army as one of the primary actors behind a series of DDoS attacks targeting government entities in the Middle East. Their activities indicate a focus on both disruptive and influence operations.

CL-STA-1087 is a suspected state-sponsored espionage campaign operating out of China, targeting military organizations in Southeast Asia. The actor has demonstrated operational patience, maintaining dormant access for extended periods while focusing on precision intelligence collection and employing robust operational security measures. Their infrastructure includes the use of a legitimate cloud service for C2 operations, indicating a cloud-native approach. File timestamps and other indicators trace the campaign's activity back to 2020, suggesting a long-running operation.

APTIran has claimed responsibility for a large-scale campaign targeting Israeli critical infrastructure, asserting infiltration of government ministries, hospitals, universities, and financial institutions as retaliation for Israeli military operations. The group has leaked over 350,000 Israeli government login credentials and approximately 300 internal databases, while also threatening to create a 'zombie' network from infected devices. They have reportedly deployed ransomware strains such as ALPHV and LockBit as part of their offensive toolkit. Additionally, APTIran has made unverified claims of compromising Israeli water control systems and the state-owned food security agency Jordan Silos and Supply General Co.

313 Team is an Iraq-based threat actor that has conducted coordinated DDoS campaigns targeting multiple government servers in the UAE, Kuwait, and Romania, often in response to political statements. They have claimed responsibility for significant disruptions, including a one-hour shutdown of Romania’s National Tax Agency and an 18-hour outage of Kuwait's national e-government portal. The group has also engaged in website defacements, showcasing coordinated branding with other aligned groups. Their operations reflect a focus on government infrastructure, employing DDoS techniques and leveraging public political discourse as justification for their attacks.

Malware family tracked by Malpedia. ID: win.zynor_rat

According to FireEye, Zyklon or Zyklon HTTP is a publicly available, full-featured backdoor capable of keylogging, password harvesting, downloading and executing additional plugins, conducting distributed denial-of-service (DDoS) attacks, and self-updating and self-removal. The malware may communicate with its command and control (C2) server over The Onion Router (Tor) network if configured to do so. The malware can download several plugins, some of which include features such as cryptocurrency mining and password recovery, from browsers and email software. Zyklon also provides a very efficient mechanism to monitor the spread and impact.

Cisco Talos attributes this backdoor with moderate confidence to the Bitter APT.

According to FireEye, ZXSHELL is a backdoor that can be downloaded from the internet, particularly Chinese hacker websites. The backdoor can launch port scans, run a keylogger, capture screenshots, set up an HTTP or SOCKS proxy, launch a reverse command shell, cause SYN floods, and transfer/delete/run files. The publicly available version of the tool provides a graphical user interface that malicious actors can use to interact with victim backdoors. Simplified Chinese is the language used for the bundled ZXSHELL documentation.

Malware family tracked by Malpedia. ID: win.zupdax

Malware family tracked by Malpedia. ID: win.zupdater

According to ESET, this malware family was active exclusively in Brazil until the middle of 2020. It s identified by its method for obfuscating strings. It creates a function for each character of the alphabet and then concatenates the result of calling the correct functions in sequence.

Information Stealer used by Void Balaur.

Malware family tracked by Malpedia. ID: win.zlob

This family describes the (initially small) loader, which downloads Zeus OpenSSL. In June 2016, a new loader was dubbed DEloader by Fortinet. It has some functions borrowed from Zeus 2.0.8.9 (e.g. the versioning, nrv2b, binstorage-labels), but more importantly, it downloaded a Zeus-like banking trojan (-> Zeus OpenSSL). Furthermore, the loader shared its versioning with the Zeus OpenSSL it downloaded. The initial samples from May 2016 were small (17920 bytes). At some point, visualEncrypt/Decrypt was added, e.g. in v1.11.0.0 (September 2016) with size 27648 bytes. In January 2017 with v1.15.0.0, obfuscation was added, which blew the size up to roughly 80k, and the loader became known as Zloader aka Terdot. These changes may be related to the Moskalvzapoe Distribution Network, which started the distribution of it at the same time. Please note that IBM X-Force decided to call win.zloader/win.zeus_openssl "Zeus Sphinx", after mentioning it as "a new version of Zeus Sphinx" in their initial post in August 2016. Malpedia thus lists the alias "Zeus XSphinx" for win.zeus_openssl - the X to refer to IBM X-Force.

Malware family tracked by Malpedia. ID: win.ziyangrat

Malware family tracked by Malpedia. ID: win.zitmo

An information stealer written in .NET.

Malware family tracked by Malpedia. ID: win.zhmimikatz

Malware family tracked by Malpedia. ID: win.zhcat

zgRAT is a Remote Access Trojan malware which sometimes drops other malware such as AgentTesla malware. zgRAT has an inforstealer use which targets browser information and cryptowallets. Usually spreads by USB or phishing emails with -zip/-lnk/.bat/.xlsx attachments and so on.

Malware family tracked by Malpedia. ID: win.zezin

This family describes the vanilla Zeus-variant that includes TOR (and Polipo proxy). It has an almost 90% overlap with Zeus v2.0.8.9. Please note that IBM X-Force decided to call win.zloader/win.zeus_openssl "Zeus Sphinx", after mentioning it as "a new version of Zeus Sphinx" in their initial post in August 2016. Malpedia thus lists the alias "Zeus XSphinx" for win.zeus_openssl - the X to refer to IBM X-Force. Zeus Sphinx on the one hand has the following versioning ("slow increase") - 2015/09 v1.0.1.0 (Zeus Sphinx size: 1.5 MB) - 2016/02 v1.0.1.2 (Zeus Sphinx size: 1.5 MB) - 2016/04 v1.0.2.0 (Zeus Sphinx size: 1.5 MB) Zeus OpenSSL on the other hand has the following versioning ("fast increase") - 2016/05 v1.5.4.0 (Zeus OpenSSL size: 1.2 MB) - 2017/01 v1.14.8.0 (Zeus OpenSSL size: 1.8 MB) - 2017/01 v1.15.0.0 (Zeus OpenSSL size: 2.2 MB)