What's new arround internet
| Src | Date (GMT) | Titre | Description | Tags | Stories | Notes |
 |
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 | ★★ |
|
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 | ★ |
 |
2023-02-15 20:29:00 | North Korea\'s APT37 Targeting Southern Counterpart with New M2RAT Malware (lien direct) | The North Korea-linked threat actor tracked as APT37 has been linked to a piece of new malware dubbed M2RAT in attacks targeting its southern counterpart, suggesting continued evolution of the group's features and tactics. APT37, also tracked under the monikers Reaper, RedEyes, Ricochet Chollima, and ScarCruft, is linked to North Korea's Ministry of State Security (MSS) unlike the Lazarus and | Malware Threat Cloud | APT 38 APT 37 | ★★ |
 |
2022-10-18 08:41:18 | The benefits of taking an intent-based approach to detecting Business Email Compromise (lien direct) |  By Abhishek Singh.BEC is a multi-stage attack. Adversaries first identify targets, then they establish rapport with the victim before exploiting them for whatever their end goal is. In the case of BEC, a threat actor can impersonate any employee in the organization to trick targets. A policy that checks for authorized email addresses of the sender can prevent BEC attacks. However, scaling the approach for every employee in a large organization is a challenge. Building an executive profile based on email analysis using a machine learning model and scanning emails against that profile will detect BEC. Data collection for building and training machine learning algorithms can take time, though, opening a window of opportunity for threat actors to exploit. Detection of exploitation techniques such as lookalike domains and any differences in the email addresses in the "From" and "Reply-to" fields can also detect BEC messages. However, the final verdict cannot account for the threat actor's intent. The intent-based approach detects BEC and then classifies it into the type of scam. It catches BEC messages, irrespective of whether a threat actor is impersonating a C-level executive or any employee in an organization. Classification based on the type of scam can help identify which segment of an organization was targeted and which employees were being impersonated by the threat actor. The additional information will further assist in better designing preventive features to stop BEC. Business email compromise (BEC) is one of the most financially damaging online crimes. As per the internet crime 221 report, the total loss in 2021 due to BEC is around 2.4 billion dollars. Since 2013, BEC has resulted in a 43 billion dollars loss. The report defines BEC as a scam targeting businesses (not individuals) working with foreign suppliers and companies regularly performing wire transfer payments. Fraudsters carry out these sophisticated scams to conduct the unauthorized transfer of funds. This introduces the challenge of how to detect and block these campaigns as they continue to compromise organizations successfully. There are a variety of approaches to identifying BEC email messages, such as using policy to allow emails from authorized email addresses, detecting exploitation techniques used by threat actors, building profiles by analysis of emails, and validating against the profile to detect BEC. These approaches have a variety of limitations or shortcomings. Cisco Talos is taking a different approach and using an intent-based model to identify and block BEC messages. Before we get too deep into the intent-based model, take a deeper look at the commonly used approaches to block BEC from the simplistic through machine learning (ML) approaches. Policy-based detection The first place to start is with policy-based detection as it is one of the most common and simplistic approaches to blocking BEC campaigns. Let's start by looking at an example of a BEC email. |
Threat Medical Cloud | Yahoo Uber APT 38 APT 37 APT 29 APT 19 APT 15 APT 10 | |
 |
2022-08-06 10:46:21 | CISO workshop slides (lien direct) | A glossy, nicely-constructed and detailed PowerPoint slide deck by Microsoft Security caught my beady this morning. The title 'CISO Workshop: Security Program and Strategy' with 'Your Name Here' suggests it might be a template for use in a workshop/course bringing CISOs up to speed on the governance, strategic and architectural aspects of information security, but in fact given the amount of technical detail, it appears to be aimed at informing IT/technology managers about IT or cybersecurity, specifically. Maybe it is intended for newly-appointed CISOs or more junior managers who aspire to be CISOs, helping them clamber up the pyramid (slide 87 of 142): | Malware Vulnerability Threat Patching Guideline Medical Cloud | Uber APT 38 APT 37 APT 28 APT 19 APT 15 APT 10 APT 34 Guam | |
 |
2018-08-10 16:15:03 | The analysis of the code reuse revealed many links between North Korea malware (lien direct) | Security researchers at Intezer and McAfee have conducted a joint investigation that allowed them to collect evidence that links malware families attributed to North Korean APT groups such as the notorious Lazarus Group and Group 123. The experts focused their analysis on the code reuse, past investigations revealed that some APT groups share portions of code […] | Malware Medical Cloud | APT 38 APT 37 | |
 |
2018-08-09 13:00:01 | Examining Code Reuse Reveals Undiscovered Links Among North Korea\'s Malware Families (lien direct) | 
This research is a joint effort by Jay Rosenberg, senior security researcher at Intezer, and Christiaan Beek, lead scientist and senior principal engineer at McAfee. Intezer has also posted this story. Attacks from the online groups Lazarus, Silent Chollima, Group 123, Hidden Cobra, DarkSeoul, Blockbuster, Operation Troy, and 10 Days of Rain are believed to …
|
Malware Guideline Medical Cloud | APT 38 APT 37 | |
 |
2017-12-15 14:00:00 | Things I Hearted This Week 15th December 2017 (lien direct) |
Continuing the trend from last week, I’ll continue trying to put a positive spin on the week’s security news.
Why? I hear you ask. Well, I’ve been mulling over the whole optimist thing, and glass half full analogy and it does work wonders. Side note, a tweet about half full / empty glasses and infosec took on a life of its own a few days ago.
But I’m reminded of the ending monologue by Morgan Freeman in “The Shawshank Redemption”, in which he starts off by saying, “Get busy living or get busy dying.”
So the thought of the week is, “Get busy securing, or get busy insecuring.” Hmm doesn’t quite have the same ring to it. Will have to think of a better word – but you catch my drift. Let’s jump into this week’s interesting security bits
Mirai Mirai on the wall
I picture Brian Krebs as being a Liam Neeson type – he sees that his website is under attack by a never-before seen DDoS attack. He mutters to himself, “I don’t know who you are, but I will hunt you, I will find you, and I will blog about it until you get arrested, prosecuted, and thrown in jail.”
It so happens that this week the hackers behind the Mirai botnet and a series of DDoS attacks pled guilty.
The Hackers Behind Some of the Biggest DDoS Attacks in History Plead Guilty | Motherboard
Mirai IoT Botnet Co-Authors Plead Guilty | KrebsonSecurity
Botnet Creators Who Took Down the Internet Plead Guilty | Gizmondo
Bug Laundering Bounties
Apparently, HBO negotiated with hackers. Paying them $250,000 under the guise of a bug bounty as opposed to a ransom.
Maybe in time, it will be found that HBO acted above board, maybe it was a sting operation, maybe it was a misconstrued email.
The worrying fact is that any payment exchange system can be used to launder money. However, bug bounty providers don’t (as far as I can tell) have financial services obligations. Does the bug bounty industry need more regulation (shudder)?
Leaked email shows HBO negotiating with hackers | Calgary Herald
Remember the 'Game of Thrones' leak? An Iranian hacker was charged with stealing HBO scripts to raise bitcoin | USA Today
Uber used bug bounty program to launder blackmail payment to hacker | ars Technica
Inside a low budget consumer hardware espionage implant
I’m not much of a hardware expert – actually, I’m not much of a hardware novice either. But this writeup by Mich is awesome. I didn’t even know there were so many ways to sniff, intercept and basically mess around with stuff at such small scale. It’s extremely detailed and I’ve permanently bookmarked it for future reference.
|
Guideline Medical Cloud | Uber APT 38 APT 37 |
1
We have: 8 articles.
We have: 8 articles.
To see everything:
Our RSS (filtrered)
