data exfiltration | Breaking Cybersecurity News | The Hacker News

The cryptojacking group known as  TeamTNT  is suspected to be behind a previously undiscovered strain of malware used to mine Monero cryptocurrency on compromised systems. That's according to Cado Security, which  found  the  sample  after Sysdig detailed a sophisticated attack known as  SCARLETEEL  aimed at containerized environments to ultimately steal proprietary data and software. Specifically, the early phase of the attack chain involved the use of a cryptocurrency miner, which the cloud security firm suspected was deployed as a decoy to conceal the detection of data exfiltration. The artifact – uploaded to VirusTotal late last month – "bear[s] several syntactic and semantic similarities to prior TeamTNT payloads, and includes a wallet ID that has previously been attributed to them," a new analysis from Cado Security has  revealed . TeamTNT , active since at least 2019, has been documented to repeatedly strike cloud and container environments to deploy cryptocur

Malicious actors can take advantage of "insufficient" forensic visibility into Google Cloud Platform (GCP) to exfiltrate sensitive data, a new research has found. "Unfortunately, GCP does not provide the level of visibility in its storage logs that is needed to allow any effective forensic investigation, making organizations blind to potential data exfiltration attacks," cloud incident response firm Mitiga  said  in a report. The attack banks on the prerequisite that the adversary is able to gain control of an identity and access management (IAM) entity in the targeted organization by methods like social engineering to access the GCP environment. The crux of the problem is that GCP's  storage access logs  do not provide adequate transparency with regards to potential file access and read events, instead grouping them all as a single "Object Get" activity. "The same event is used for a wide variety of types of access, including: Reading a fil

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Ransomware is the de facto threat organizations have faced over the past few years. Threat actors were making easy money by exploiting the high valuation of cryptocurrencies and their victims' lack of adequate preparation.  Think about bad security policies, untested backups, patch management practices not up-to-par, and so forth. It resulted in easy growth for ransomware extortion, a crime that multiple threat actors around the world perpetrate.  Something's changed, though. Crypto valuations have dropped, reducing the monetary appeal of ransomware attacks due to organizations mounting a formidable defense against ransomware. Threat actors have been searching for another opportunity – and found one. It's called data exfiltration, or exfil, a type of espionage causing headaches at organizations worldwide. Let's take a look. The threat to reveal confidential information Information exfiltration is rapidly becoming more prevalent. Earlier this year, incidents at Nvi

Researchers have detailed a previously undocumented .NET-based post-exploitation framework called IceApple that has been deployed on Microsoft Exchange server instances to facilitate reconnaissance and data exfiltration. "Suspected to be the work of a state-nexus adversary, IceApple remains under active development, with 18 modules observed in use across a number of enterprise environments, as of May 2022," CrowdStrike  said  in a Wednesday report. The cybersecurity firm, which discovered the sophisticated malware in late 2021, noted its presence in multiple victim networks and in geographically distinct locations. Targeted victims span a wide range of sectors, including technology, academic, and government entities. A post-exploitation toolset, as the name implies, is not used to provide initial access, but is rather employed to carry out follow-on attacks after having already compromised the hosts in question. IceApple is notable for the fact that it's an in-memo

Cybersecurity researchers have discovered a new computer virus associated with the Stealth Falcon state-sponsored cyber espionage group that abuses a built-in component of the Microsoft Windows operating system to stealthily exfiltrate stolen data to attacker-controlled server. Active since 2012, Stealth Falcon is a sophisticated hacking group known for targeting journalists, activists, and dissidents with spyware in the Middle East, primarily in the United Arab Emirates (UAE). Dubbed Win32/StealthFalcon , named after the hacking group, the malware communicates and sends collected data to its remote command-and-control (C&C) servers using Windows Background Intelligent Transfer Service (BITS). BITS is a communication protocol in Windows that takes unused network bandwidth to facilitate asynchronous, prioritized, and throttled transfer of files between machines in the foreground or background, without impacting the network experience. BITS is commonly used by software up

The U.S. Department of Homeland Security (DHS) and the FBI have issued another joint alert about a new piece of malware that the prolific North Korean APT hacking group Hidden Cobra has actively been using in the wild. Hidden Cobra, also known as Lazarus Group and Guardians of Peace, is believed to be backed by North Korean government and known to launch cyber attacks against media organizations, aerospace, financial and critical infrastructure sectors across the world. The hacking group was the same associated with the 2017 WannaCry ransomware menace , the 2014 Sony Pictures hack , and the SWIFT Banking attack in 2016. Now, the DHS and the FBI have uncovered a new malware variant, dubbed ELECTRICFISH , that Hidden Cobra hackers have been using for secretly tunneling traffic out of compromised computer systems. The malware implements a custom protocol configured with a proxy server/port and proxy username and password, allowing hackers to bypass the compromised system'