Microsoft Warns of New ‘FalseFont’ Backdoor Targeting the Defense Sector

Businesses in the Defense Industrial Foundation (DIB) sector are in the crosshairs of an Iranian risk actor as part of a campaign designed to provide a in no way-in advance of-seen backdoor called FalseFont.

The findings occur from Microsoft, which is tracking the activity less than its weather-themed moniker Peach Sandstorm (previously Holmium), which is also identified as APT33, Elfin, and Refined Kitten.

“FalseFont is a customized backdoor with a extensive range of functionalities that allow operators to remotely access an infected procedure, start additional data files, and ship details to its [command-and-control] servers,” the Microsoft Risk Intelligence workforce mentioned on X (earlier Twitter).

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The first recorded use of the implant was in early November 2023.

The tech huge even further explained that the latest development aligns with previous exercise from Peach Sandstorm and demonstrates a continued evolution of the threat actor’s tradecraft.

In a report released in September 2023, Microsoft connected the team to password spray attacks carried out in opposition to thousands of corporations globally concerning February and July 2023. The intrusions generally singled out satellite, defense, and pharmaceutical sectors.

The finish goal, the corporation stated, is to aid intelligence assortment in guidance of Iranian condition interests. Peach Sandstorm is believed to have been lively because at least 2013.

The disclosure will come as the Israel Nationwide Cyber Directorate (INCD) accused Iran and Hezbollah of making an attempt to unsuccessfully concentrate on Ziv Hospital by means of hacking crews named Agrius and Lebanese Cedar.

The agency also discovered particulars of a phishing campaign in which a bogus advisory for a security flaw in F5 Big-IP products and solutions is employed as a decoy to deliver wiper malware on Windows and Linux devices.

The lure for the focused attack is a critical authentication bypass vulnerability (CVE-2023-46747, CVSS score: 9.8) that arrived to light-weight in late October 2023. The scale of the marketing campaign is at the moment mysterious.

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