Threats Tagged 'cloud services'

A new campaign targeting Indian government entities was uncovered, utilizing three backdoors: SHEETCREEP, FIREPOWER, and MAILCREEP. These tools leverage legitimate cloud services like Google Sheets, Firebase, and Microsoft Graph API for command and control, enabling the attackers to blend in with normal traffic. The campaign, named Sheet Attack, employed PDFs and malicious LNK files as initial infection vectors. Evidence suggests the use of generative AI in malware development. While sharing similarities with APT36, the campaign's unique characteristics point to either a new Pakistan-linked group or an APT36 subgroup. The attackers demonstrated hands-on-keyboard activity and deployed additional payloads, including a document stealer, to selected targets.

MediumMalwareIndiaUnited KingdomGermany+3#cloud services#sheetcreep#government

ESET researchers have uncovered a new China-aligned APT group named LongNosedGoblin targeting governmental entities in Southeast Asia and Japan for cyberespionage. The group employs a varied custom toolset of C#/.NET applications and abuses Group Policy for lateral movement. Key tools include NosyHistorian for collecting browser history, NosyDoor backdoor using cloud services as C&C, and NosyStealer for exfiltrating browser data. The attackers also utilize techniques like AppDomainManager injection and AMSI bypassing. LongNosedGoblin has been active since at least September 2023, showing ongoing campaigns throughout 2024 and 2025. The research provides detailed analysis of the group's malware and tactics, including potential sharing of the NosyDoor backdoor among multiple China-aligned actors.

MediumMalwareJapanGermanyFrance+3#nosyhistorian#southeast asia#browser data

A newly discovered China-aligned APT group named LongNosedGoblin has been targeting governmental entities in Southeast Asia and Japan for cyberespionage purposes. The group employs a varied custom toolset consisting mainly of C#/.NET applications and notably uses Group Policy to deploy malware and move laterally across compromised networks. Their main tools include NosyHistorian for collecting browser history, NosyDoor backdoor using cloud services as C&C, and NosyStealer for exfiltrating browser data. The group has been active since at least September 2023 and uses techniques like AMSI bypassing and living-off-the-land tactics. LongNosedGoblin's campaigns involve multiple stages of execution and various malware components, showcasing a sophisticated approach to cyber espionage operations.

MediumMalwareGermanyFranceUnited Kingdom+5#china-aligned#custom malware#nosydownloader

APT31, a Chinese cyber espionage group, is actively targeting the Russian IT sector, especially government contractors, using advanced malware and stealthy tactics. They leverage cloud services for command and control, deploy new malware families like AufTime, COFFProxy, VtChatter, YaLeak, CloudyLoader, and OneDriveDoor, and use prepared scripts for lateral movement. Their operations are timed to exploit organizational workflows, such as holidays, enabling prolonged undetected presence. The group employs multiple persistence, credential access, and data exfiltration techniques, evolving their toolkit while retaining older tools to maintain stealth. Although primarily focused on Russia, the sophistication and targeting of government contractors pose risks to European organizations with similar profiles. Mitigation requires tailored detection of cloud-based C2, monitoring lateral movement scripts, and enhanced credential security. Countries with significant IT sectors supporting government contracts and geopolitical interest in Russia-China dynamics are most at risk. The threat is assessed as high severity due to its espionage nature, stealth, and potential for long-term data compromise without requiring user interaction or known exploits in the wild.

MediumMalwareGermanyFrancePoland+4#localplugx#cloudsorcerer#coffproxy

APT37, a North Korean state-backed cyber espionage group, has launched a sophisticated spear-phishing campaign targeting South Korean government sectors, research institutions, and academics. The attackers use malicious LNK files disguised as legitimate documents to deliver a multi-stage infection chain. This includes fileless PowerShell execution, in-memory loading of encrypted payloads, and covert data exfiltration mechanisms. The campaign, dubbed Operation HanKook Phantom, demonstrates APT37's continued focus on intelligence gathering and long-term espionage against South Korean targets. The attackers leverage cloud services for command-and-control and employ various techniques to evade detection, highlighting the persistent threat posed by North Korean state-sponsored actors.

MediumMalwareRomaniaGermanyFrance+3#powershell#cloud services#data exfiltration

A wide-ranging phishing campaign has been identified that enables threat actors to bypass traditional security controls and delay detection. The campaign, tracked since 2024, has facilitated remote surveillance, credential theft, lateral movement, data exfiltration, and ransomware across numerous organizations. The likely new or rebranded cybercriminal group behind this campaign uses legitimate services like TryCloudflare to host and deliver highly evasive malware such as AsyncRAT and other Remote Access Trojans. This malware allows threat actors to remotely control infected networks throughout the full attack lifecycle. The campaign targets organizations globally across multiple sectors without industry preference, using widely available malware and difficult-to-detect techniques involving Python scripts, obfuscated batch scripts, trusted cloud services, and dynamic infrastructure.

MediumMalwareGermanyFranceUnited Kingdom+7#asyncrat#xworm#python scripts