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Over 39,000 Unauthenticated Redis Instances Found Exposed on the Internet

Over 39,000 Unauthenticated Redis Instances Found Exposed on the Internet

Sep 21, 2022
An unknown attacker targeted tens of thousands of unauthenticated Redis servers exposed on the internet in an attempt to  install a cryptocurrency miner . It's not immediately known if all of these hosts were successfully compromised. Nonetheless, it was made possible by means of a "lesser-known technique" designed to trick the servers into writing data to arbitrary files – a case of  unauthorized access  that was first documented in September 2018. "The general idea behind this exploitation technique is to configure Redis to write its file-based database to a directory containing some method to authorize a user (like adding a key to '.ssh/authorized_keys'), or start a process (like adding a script to '/etc/cron.d')," Censys  said  in a new write-up. The attack surface management platform said it uncovered evidence (i.e., Redis commands) indicating efforts on part of the attacker to store malicious  crontab entries  into the file "/var/...
75% of the 'Left to Get Hacked' Redis Servers Found Infected

75% of the 'Left to Get Hacked' Redis Servers Found Infected

Jun 04, 2018
Despite the continual emergence of new cyber attacks because of misconfigured servers and applications, people continue to ignore security warnings. A massive malware campaign designed to target open Redis servers, about which researchers warned almost two months ago, has now grown and already hijacked at least 75% of the total servers running publicly accessible Redis instances. Redis, or REmote DIctionary Server, is an open source, widely popular data structure tool that can be used as an in-memory distributed database, message broker or cache. Since it is designed to be accessed inside trusted environments, it should not be exposed on the Internet. Dubbed RedisWannaMine , a similar malware leveraging same loophole was discovered in late March by data center security vendor Imperva and designed to drop a cryptocurrency mining script on the targeted servers—both database and application. According to Imperva's March blog post , this cryptojacking threat was "more c...
From $22M in Ransom to +100M Stolen Records: 2025's All-Star SaaS Threat Actors to Watch

From $22M in Ransom to +100M Stolen Records: 2025's All-Star SaaS Threat Actors to Watch

Jan 06, 2025SaaS Security / Threat Detection
In 2024, cyber threats targeting SaaS surged, with 7,000 password attacks blocked per second (just in Entra ID)—a 75% increase from last year—and phishing attempts up by 58%, causing $3.5 billion in losses (source: Microsoft Digital Defense Report 2024 ). SaaS attacks are increasing, with hackers often evading detection through legitimate usage patterns. The cyber threat arena saw standout players, unexpected underdogs, and relentless scorers leaving their mark on the SaaS security playing field.  As we enter 2025, security teams must prioritize SaaS security risk assessments to uncover vulnerabilities, adopt SSPM tools for continuous monitoring, and proactively defend their systems. Here are the Cyber Threat All-Stars to watch out for—the MVPs, rising stars, and master strategists who shaped the game. 1. ShinyHunters: The Most Valuable Player Playstyle: Precision Shots (Cybercriminal Organization) Biggest Wins: Snowflake, Ticketmaster and Authy Notable Drama: Exploited on...
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