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Linux Privilege Escalation From Misconfiguration by Anand M
INTRODUCTION History: Computer systems are designed for the use of multiple activities and multiple users. Privileges mean what a user is permitted to do on the system. Privileges include read and write files, execute, or modifying system files. Privilege escalation means a user receives privileges they are not entitled to do. These privileges can be used to delete files, view private information, install unwanted programs such as viruses, Trojan, malware, etc. When a system has a bug that allows security to be bypassed, alternatively, it has flawed design assumptions about how it will be used to leverage the access to gain major root access. Privilege escalation is the act of exploiting a bug, design flaw or configuration oversight in an operating system and software and misconfigurations to gain elevated access to resources that are normally protected from an application side or end user. An application with more privileges than intended by the application developer and system adm...
Ryuk Ransomware: Lucratively Attacking Several Enterprise Networks Around the Globe
This ransomware had functioned for the first time quite recently and is pretty rapidly sweeping across the world. An amount of $640,000 was wrested by the attacker, in all. 15 to 50 BTC were demanded from the targets in exchange for their files and other data. The ransomware encrypts data that’s in the storage, in the personal computers and in the data centres. The attack had several victims to its name, including some of the major organizations in the USA and other countries. HERMES ransomware which is issued by the Lazarus group which is a North Korean APT, had something to do with the Ryuk ransomware attack. This gave rise to another belief mainly that this very ransomware could be one of the targeted campaigns from the Lazarus Group or the malware author derivative HERMES source code. The same encryption logic and process as that of the one used in the HERMES ransomware was found in Ryuk. This attack is manually carried forward. The subjects of the attacks are ...
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