T1046: Network Service Discovery

Volt Typhoon is a People's Republic of China (PRC) state-sponsored actor that has been active since at least 2021, primarily targeting critical infrastructure organizations in the US and its territories including Guam. Volt Typhoon's targeting and pattern of behavior have been assessed as pre-positioning to enable lateral movement to operational technology (OT) assets for potential destructive or disruptive attacks. Volt Typhoon has emphasized stealth in operations using web shells, living-off-the-land (LOTL) binaries, hands on keyboard activities, and stolen credentials.[1][2][3][4]. The group has leveraged compromised SOHO routers to proxy command and control traffic and obscure its infrastructure, activity associated with the KV botnet.[5].

Reporting indicates a separate initial access cluster, SYLVANITE, has been observed exploiting internet-facing edge devices and transferring access to Volt Typhoon, also tracked as VOLTZITE, for follow-on operations. [6]

APT39 is one of several names for cyber espionage activity conducted by the Iranian Ministry of Intelligence and Security (MOIS) through the front company Rana Intelligence Computing since at least 2014. APT39 has primarily targeted the travel, hospitality, academic, and telecommunications industries in Iran and across Asia, Africa, Europe, and North America to track individuals and entities considered to be a threat by the MOIS.[1][2][3][4][5]

BlackTech is a suspected Chinese cyber espionage group that has primarily targeted organizations in East Asia--particularly Taiwan, Japan, and Hong Kong--and the US since at least 2013. BlackTech has used a combination of custom malware, dual-use tools, and living off the land tactics to compromise media, construction, engineering, electronics, and financial company networks.[1][2][3]

BlackByte is a ransomware threat actor operating since at least 2021. BlackByte is associated with several versions of ransomware also labeled BlackByte Ransomware. BlackByte ransomware operations initially used a common encryption key allowing for the development of a universal decryptor, but subsequent versions such as BlackByte 2.0 Ransomware use more robust encryption mechanisms. BlackByte is notable for operations targeting critical infrastructure entities among other targets across North America.[1][2][3][4][5]

menuPass is a threat group that has been active since at least 2006. Individual members of menuPass are known to have acted in association with the Chinese Ministry of State Security's (MSS) Tianjin State Security Bureau and worked for the Huaying Haitai Science and Technology Development Company.[1][2]

menuPass has targeted healthcare, defense, aerospace, finance, maritime, biotechnology, energy, and government sectors globally, with an emphasis on Japanese organizations. In 2016 and 2017, the group is known to have targeted managed IT service providers (MSPs), manufacturing and mining companies, and a university.[3][4][5][6][7][1][2]

Threat Group-3390 is a Chinese threat group that has extensively used strategic Web compromises to target victims.[1] The group has been active since at least 2010 and has targeted organizations in the aerospace, government, defense, technology, energy, manufacturing and gambling/betting sectors.[2][3][4]

Salt Typhoon is a People's Republic of China (PRC) state-backed actor that has been active since at least 2019 and responsible for numerous compromises of network infrastructure at major U.S. telecommunication and internet service providers (ISP). Salt Typhoon has targeted and leveraged public facing network edge devices to gain access to victim environments. Salt Typhoon has been publicly associated with activities resembling other security industry reported activity groups to include OPERATOR PANDA, RedMike, GhostEmperor, and UNC5807.[1][2][3][4][5][6][7][8]

Mustang Panda is a China-based cyber espionage threat actor that has been conducting operations since at least 2012. Mustang Panda has been known to use tailored phishing lures and decoy documents to deliver malicious payloads. Mustang Panda has targeted government, diplomatic, and non-governmental organizations, including think tanks, religious institutions, and research entities, across the United States, Europe, and Asia, with notable activity in Russia, Mongolia, Myanmar, Pakistan, and Vietnam. [1][2][3][4][5][6][7][8][9][10][11][12][13]

Agrius is an Iranian threat actor active since 2020 notable for a series of ransomware and wiper operations in the Middle East, with an emphasis on Israeli targets.[1][2] Public reporting has linked Agrius to Iran's Ministry of Intelligence and Security (MOIS).[3]

FIN13 is a financially motivated cyber threat group that has targeted the financial, retail, and hospitality industries in Mexico and Latin America, as early as 2016. FIN13 achieves its objectives by stealing intellectual property, financial data, mergers and acquisition information, or PII.[1][2]

DarkVishnya is a financially motivated threat actor targeting financial institutions in Eastern Europe. In 2017-2018 the group attacked at least 8 banks in this region.[1]

OilRig is a suspected Iranian threat group that has targeted Middle Eastern and international victims since at least 2014. The group has targeted a variety of sectors, including financial, government, energy, chemical, and telecommunications. It appears the group carries out supply chain attacks, leveraging the trust relationship between organizations to attack their primary targets. The group works on behalf of the Iranian government based on infrastructure details that contain references to Iran, use of Iranian infrastructure, and targeting that aligns with nation-state interests.[1][2][3][4][5][6][7]

Pupy is an open source, cross-platform (Windows, Linux, OSX, Android) remote administration and post-exploitation tool. [1] It is written in Python and can be generated as a payload in several different ways (Windows exe, Python file, PowerShell oneliner/file, Linux elf, APK, Rubber Ducky, etc.). [1] Pupy is publicly available on GitHub. [1]

Backdoor.Oldrea is a modular backdoor that used by Dragonfly against energy companies since at least 2013. Backdoor.Oldrea was distributed via supply chain compromise, and included specialized modules to enumerate and map ICS-specific systems, processes, and protocols.[1][2][3]

BACKUPOSINT v9.0 APEX PREDATOR is a 49-module Python malware developed entirely by Anthropic’s Claude Code as part of the AI-Assisted Breach of Mexico's Government Infrastructure campaign. BACKUPOSINT v9.0 APEX PREDATOR leverages publicly available techniques for network enumeration, credential harvesting, Active Directory interrogation, database access, privilege escalation, cloud metadata extraction, and lateral movement [1].

Industroyer is a sophisticated malware framework designed to cause an impact to the working processes of Industrial Control Systems (ICS), specifically components used in electrical substations.[1] Industroyer was used in the attacks on the Ukrainian power grid in December 2016.[2] This is the first publicly known malware specifically designed to target and impact operations in the electric grid.[3]

Empire is an open-source, cross-platform remote administration and post-exploitation framework that is publicly available on GitHub. While the tool itself is primarily written in Python, the post-exploitation agents are written in pure PowerShell for Windows and Python for Linux/macOS. Empire was one of five tools singled out by a joint report on public hacking tools being widely used by adversaries.[1][2][3]

Ramsay is an information stealing malware framework designed to collect and exfiltrate sensitive documents, including from air-gapped systems. Researchers have identified overlaps between Ramsay and the Darkhotel-associated Retro malware.[1][2]

Royal is ransomware that first appeared in early 2022; a version that also targets ESXi servers was later observed in February 2023. Royal employs partial encryption and multiple threads to evade detection and speed encryption. Royal has been used in attacks against multiple industries worldwide--including critical infrastructure. Security researchers have identified similarities in the encryption routines and TTPs used in Royal and Conti attacks and noted a possible connection between their operators.[1][2][3][4][5]

SpeakUp is a Trojan backdoor that targets both Linux and OSX devices. It was first observed in January 2019. [1]

BlackEnergy is a malware toolkit that has been used by both criminal and APT actors. It dates back to at least 2007 and was originally designed to create botnets for use in conducting Distributed Denial of Service (DDoS) attacks, but its use has evolved to support various plug-ins. It is well known for being used during the confrontation between Georgia and Russia in 2008, as well as in targeting Ukrainian institutions. Variants include BlackEnergy 2 and BlackEnergy 3. [1]

Hildegard is malware that targets misconfigured kubelets for initial access and runs cryptocurrency miner operations. The malware was first observed in January 2021. The TeamTNT activity group is believed to be behind Hildegard. [1]

NBTscan is an open source tool that has been used by state groups to conduct internal reconnaissance within a compromised network.[1][2][3][4]

Peirates is a post-exploitation Kubernetes exploitation framework with a focus on gathering service account tokens for lateral movement and privilege escalation. The tool is written in GoLang and publicly available on GitHub.[1]

CostaRicto was a suspected hacker-for-hire cyber espionage campaign that targeted multiple industries worldwide, with a large number being financial institutions. CostaRicto actors targeted organizations in Europe, the Americas, Asia, Australia, and Africa, with a large concentration in South Asia (especially India, Bangladesh, and Singapore), using custom malware, open source tools, and a complex network of proxies and SSH tunnels.[1]

HomeLand Justice was a disruptive cyber campaign conducted by Iranian state-affiliated actors against Albanian government networks in July and September 2022. The activity combined ransomware, wiper malware, and data leak operations. Initial access for HomeLand Justice was established as early as May 2021, and threat actors moved laterally, exfiltrated sensitive information, and maintained persistence for approximately 14 months prior to the destructive phase of the operation. Responsibility was claimed by the "HomeLand Justice" front, which framed the campaign as retaliation against the Mujahedeen-e Khalq (MEK), an Iranian opposition group with a presence in Albania. Multiple Iran-nexus groups are assessed to have participated in the campaign, including HEXANE who probed victim infrastructure.[1][2][3] A second wave of attacks was launched in September 2022 using similar tactics following public attribution of the previous activity to Iran and the severing of diplomatic ties between Iran and Albania.[3]

C0027 was a financially-motivated campaign linked to Scattered Spider that targeted telecommunications and business process outsourcing (BPO) companies from at least June through December of 2022. During C0027 Scattered Spider used various forms of social engineering, performed SIM swapping, and attempted to leverage access from victim environments to mobile carrier networks.[1]

C0018 was a month-long ransomware intrusion that successfully deployed AvosLocker onto a compromised network. The unidentified actors gained initial access to the victim network through an exposed server and used a variety of open-source tools prior to executing AvosLocker.[1][2]

The Anthropic AI-orchestrated Campaign was conducted in September 2025 by a likely China nexus espionage actor identified as GTG-1002. The Anthropic AI-orchestrated Campaign was a highly coordinated operation that manipulated Claude Code to perform reconnaissance, vulnerability discovery, exploitation, lateral movement, credential harvesting, data analysis, and exfiltration operations at approximately 30 entities in the technology, financial, chemical, and government sectors. During the Anthropic AI-orchestrated Campaign, human operators used Claude Code agents and Model Context Protocol (MCP) tools to automate cyber operations. Operators broke attacks into discrete tasks, used crafted prompts, and established personas to bypass AI guardrails, enabling the agents to execute the operations with minimal human involvement.[1][2]

Operation Wocao was a cyber espionage campaign that targeted organizations around the world, including in Brazil, China, France, Germany, Italy, Mexico, Portugal, Spain, the United Kingdom, and the United States. The suspected China-based actors compromised government organizations and managed service providers, as well as aviation, construction, energy, finance, health care, insurance, offshore engineering, software development, and transportation companies.[1]

Security researchers assessed the Operation Wocao actors used similar TTPs and tools as APT20, suggesting a possible overlap. Operation Wocao was named after an observed command line entry by one of the threat actors, possibly out of frustration from losing webshell access.[1]

2025 Poland Wiper Attacks is a Russian state-sponsored campaign that conducted destructive cyberattacks against Polish energy infrastructure in December 2025. Targets included more than 30 wind and photovoltaic farms, a combined heat and power (CHP) plant, and a manufacturing sector company. The attacks on the distributed energy resources (DER) disrupted communications between affected facilities and the distribution system operator, but did not impact electricity generation or heat supply. Across the campaign, threat actors deployed two previously undocumented wiper tools, DynoWiper, a Windows-based wiper and LazyWiper, a PowerShell wiper, distributed via malicious Group Policy Objects. At the CHP plant, threat actors had maintained access since at least March 2025, using that foothold to obtain credentials and move laterally before attempting wiper deployment. Some reporting has assessed the activity to be consistent with Russian Federal Security Service (FSB) threat activity group Dragonfly, also tracked as STATIC TUNDRA, while other reporting attributes the destructive wiper activities to the Russian General Staff Main Intelligence Directorate (GRU) threat activity group ELECTRUM, also tracked as Sandworm Team.[1][2][3][4]

The AI-Assisted Breach of Mexico's Government Infrastructure is a campaign where human operators used Claude Code AI and OpenAI GPT GPT-4.1 AI to perform reconnaissance, vulnerability exploitation, privilege escalation, discovery, credential harvesting, and exfiltration operations. The attack impacted several Mexican government institutions including the Federal Tax Authority (Servicio de Administracion Tributaria), Mexico State Government (Estado de Mexico), Mexico City Civil Registry (Registro Civil de CDMX), Jalisco State Government, National Electoral Institute (Instituto Nacional Electoral), Michoacan State Government, SADM Monterrey Municipal Water Utility (Agua y Drenaje), Tamaulipas State Government, and the Mexico City Health Department (Salud CDMX). The attack resulted in the theft of large amounts of sensitive government data and civilian records. Please note that due to the breadth of this campaign, public reporting only provides select details and as a result this campaign should not be considered comprehensive.[1]