Enumeration then occurs, and files are wiped in drives outside of the "%HOMEDRIVE%\Windows" directory. The wiper seeks out fixed and remote logical drives to target in the fourth stage. "The fourth-stage wiper payload is probably a contingency plan if the first-stage wiper fails to clear the endpoint," Cisco Talos says. In addition, Windows Defender settings are tampered with to exclude the target drive from scans.
#USED MAC WEBSITES .DLL#
DLL is a dropper that deploys and executes the main wiper payload through a VBScript. DLL, written in C#, is obfuscated with the Eazfuscator, a. A Discord server URL, hardcoded into the downloader, is then pinged to grab a. After a base64-encoded PowerShell command is executed twice and an endpoint is requested to enter sleep mode for 20 seconds. In the second stage, a downloader pulls the code required for the third step. However, with many modern systems now moving to GUID Partition Tables (GPTs), this executable may not be successful, so an additional wipe has been included in the attack chain. "Similar to the notorious NotPetya wiper that masqueraded as ransomware during its 2017 campaign, WhisperGate is not intended to be an actual ransom attempt, since the MBR is completely overwritten," the researchers say. The first wiper attempts to destroy the master boot record (MBR) and to eradicate any recovery options. In a follow-up, Cisco Talos said it was likely that stolen credentials provided the access point for the deployment of the wiper.Ĭisco Talos says that two wipers are used in WhisperGate attacks. Microsoft has published an analysis of WhisperGate, which was discovered on January 13.
The UK has recently pulled a number of UK embassy staff out of Kyiv in response. The defacement and reported compromise of at least two government systems come at a time when there appears to be a growing threat of invasion by Russia into Ukraine, despite the country denying any such plans. Websites impacted included the Ukrainian Foreign Ministry, the Ministry of Education and Science, and various state services. The wave of attacks was made public on January 14. The spate of attacks led to the defacement of at least 70 websites and a further 10 subject to "unauthorized interference," according to the Security Service of Ukraine, State Special Service and Cyber Police.
#USED MAC WEBSITES HOW TO#
Ransomware: An executive guide to one of the biggest menaces on the webĮverything you need to know about ransomware: how it started, why it's booming, how to protect against it, and what to do if your PC is infected.ĭubbed WhisperGate, the malware is a wiper that was used in cyberattacks against website domains owned by the country's government.
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