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| Src | Date (GMT) | Titre | Description | Tags | Stories | Notes |
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2023-04-25 18:22:00 | Anomali Cyber Watch: Deux attaques de la chaîne d'approvisionnement enchaînées, leurre de communication DNS furtive de chien, Evilextractor exfiltrates sur le serveur FTP Anomali Cyber Watch: Two Supply-Chain Attacks Chained Together, Decoy Dog Stealthy DNS Communication, EvilExtractor Exfiltrates to FTP Server (lien direct) |
The various threat intelligence stories in this iteration of the Anomali Cyber Watch discuss the following topics: APT, Cryptomining, Infostealers, Malvertising, North Korea, Phishing, Ransomware, and Supply-chain attacks. The IOCs related to these stories are attached to Anomali Cyber Watch and can be used to check your logs for potential malicious activity. 
Figure 1 - IOC Summary Charts. These charts summarize the IOCs attached to this magazine and provide a glimpse of the threats discussed.
Trending Cyber News and Threat Intelligence
First-Ever Attack Leveraging Kubernetes RBAC to Backdoor Clusters
(published: April 21, 2023)
A new Monero cryptocurrency-mining campaign is the first recorded case of gaining persistence via Kubernetes (K8s) Role-Based Access Control (RBAC), according to Aquasec researchers. The recorded honeypot attack started with exploiting a misconfigured API server. The attackers preceded by gathering information about the cluster, checking if their cluster was already deployed, and deleting some existing deployments. They used RBAC to gain persistence by creating a new ClusterRole and a new ClusterRole binding. The attackers then created a DaemonSet to use a single API request to target all nodes for deployment. The deployed malicious image from the public registry Docker Hub was named to impersonate a legitimate account and a popular legitimate image. It has been pulled 14,399 times and 60 exposed K8s clusters have been found with signs of exploitation by this campaign.
Analyst Comment: Your company should have protocols in place to ensure that all cluster management and cloud storage systems are properly configured and patched. K8s buckets are too often misconfigured and threat actors realize there is potential for malicious activity. A defense-in-depth (layering of security mechanisms, redundancy, fail-safe defense processes) approach is a good mitigation step to help prevent actors from highly-active threat groups.
MITRE ATT&CK: [MITRE ATT&CK] T1190 - Exploit Public-Facing Application | [MITRE ATT&CK] T1496 - Resource Hijacking | [MITRE ATT&CK] T1036 - Masquerading | [MITRE ATT&CK] T1489 - Service Stop
Tags: Monero, malware-type:Cryptominer, detection:PUA.Linux.XMRMiner, file-type:ELF, abused:Docker Hub, technique:RBAC Buster, technique:Create ClusterRoleBinding, technique:Deploy DaemonSet, target-system:Linux, target:K8s, target:Kubernetes RBAC
3CX Software Supply Chain Compromise Initiated by a Prior Software Supply Chain Compromise; Suspected North Korean Actor Responsible
(published: April 20, 2023)
Investigation of the previously-reported 3CX supply chain compromise (March 2023) allowed Mandiant researchers to detect it was a result of prior software supply chain attack using a trojanized installer for X_TRADER, a software package provided by Trading Technologies. The attack involved the publicly-available tool SigFlip decrypting RC4 stream-cipher and starting publicly-available DaveShell shellcode for reflective loading. It led to installation of the custom, modular VeiledSignal backdoor. VeiledSignal additional modules inject the C2 module in a browser process instance, create a Windows named pipe and |
Ransomware Spam Malware Tool Threat Cloud | Uber APT 38 ChatGPT APT 43 | ★★ |
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2023-02-28 16:15:00 | Anomali Cyber Watch: Newly-Discovered WinorDLL64 Backdoor Has Code Similarities with Lazarus GhostSecret, Atharvan Backdoor Can Be Restricted to Communicate on Certain Days (lien direct) | The various threat intelligence stories in this iteration of the Anomali Cyber Watch discuss the following topics: APT, Backdoors, DLL sideloading, Infostealers, Phishing, Social engineering, and Tunneling. The IOCs related to these stories are attached to Anomali Cyber Watch and can be used to check your logs for potential malicious activity.
Figure 1 - IOC Summary Charts. These charts summarize the IOCs attached to this magazine and provide a glimpse of the threats discussed.
Trending Cyber News and Threat Intelligence
WinorDLL64: A Backdoor From The Vast Lazarus Arsenal?
(published: February 23, 2023)
When the Wslink downloader (WinorLoaderDLL64.dll) was first discovered in 2021, it had no known payload and no known attribution. Now ESET researchers have discovered a Wslink payload dubbed WinorDLL64. This backdoor uses some of Wslink functions and the Wslink-established TCP connection encrypted with 256-bit AES-CBC cipher. WinorDLL64 has some code similarities with the GhostSecret malware used by North Korea-sponsored Lazarus Group.
Analyst Comment: Wslink and WinorDLL64 use a well-developed cryptographic protocol to protect the exchanged data. Innovating advanced persistent groups like Lazarus often come out with new versions of their custom malware. It makes it important for network defenders to leverage the knowledge of a wider security community by adding relevant premium feeds and leveraging the controls automation via Anomali Platform integrations.
MITRE ATT&CK: [MITRE ATT&CK] T1587.001 - Develop Capabilities: Malware | [MITRE ATT&CK] T1059.001: PowerShell | [MITRE ATT&CK] T1106: Native API | [MITRE ATT&CK] T1134.002 - Access Token Manipulation: Create Process With Token | [MITRE ATT&CK] T1070.004 - Indicator Removal on Host: File Deletion | [MITRE ATT&CK] T1087.001 - Account Discovery: Local Account | [MITRE ATT&CK] T1087.002 - Account Discovery: Domain Account | [MITRE ATT&CK] T1083 - File And Directory Discovery | [MITRE ATT&CK] T1135 - Network Share Discovery | [MITRE ATT&CK] T1057 - Process Discovery | [MITRE ATT&CK] T1012: Query Registry | [MITRE ATT&CK] Picus: The System Information Discovery Technique Explained - MITRE ATT&CK T1082 | [MITRE ATT&CK] T1614 - System Location Discovery | [MITRE ATT&CK] T1614.001 - System Location Discovery: System Language Discovery | [MITRE ATT&CK] T1016 - System Network Configuration Discovery | [MITRE ATT&CK] T1049 - System Network Connections Discovery | |
Ransomware Malware Tool Threat Medical Medical Cloud | APT 38 | ★ |
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