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Many targeted attacks [11] and most advanced persistent threats rely on zero-day vulnerabilities. [12] The average time to develop an exploit from a zero-day vulnerability was estimated at 22 days. [13] The difficulty of developing exploits has been increasing over time due to increased anti-exploitation features in popular software. [14]
Stuxnet attacked Windows systems using an unprecedented four zero-day attacks (plus the CPLINK vulnerability and a vulnerability used by the Conficker worm [63]). It is initially spread using infected removable drives such as USB flash drives, [21] [45] which contain Windows shortcut files to initiate executable code. [64]
Two days after the attack became public, McAfee reported that the attackers had exploited purported zero-day vulnerabilities (unfixed and previously unknown to the target system developers) in Internet Explorer and dubbed the attack "Operation Aurora".
Apple's iMessage flaw offers a warning: Zero-day exploits have become more common. But there's good reason for people not to worry — as long as they update their devices.
In 2023, Clop employs more complex attacks that make significant impacts and allow them to demand higher ransom payments. Specifically, the Clop gang targeted data theft by exploiting a zero-day vulnerability in MOVEit Transfer. Their objective is to overcome the overall decline in ransom payments by demanding substantial amounts from their ...
Log4Shell (CVE-2021-44228) is a zero-day vulnerability reported in November 2021 in Log4j, a popular Java logging framework, involving arbitrary code execution. [2] [3] The vulnerability had existed unnoticed since 2013 and was privately disclosed to the Apache Software Foundation, of which Log4j is a project, by Chen Zhaojun of Alibaba Cloud's security team on 24 November 2021.
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