Russian threat group COLDRIVER expands its targeting of Western officials to include the use of malware

Over the years, TAG has analyzed a range of persistent threats including COLDRIVER (also known as UNC4057, Star Blizzard and Callisto), a Russian threat group focused on credential phishing activities against high profile individuals in NGOs, former intelligence and military Read More …

Russian FSB cyber actor Star Blizzard continues worldwide spear-phishing campaigns

The Russia-based actor Star Blizzard (formerly known as SEABORGIUM, also known as Callisto Group/TA446/COLDRIVER/TAG-53/BlueCharlie) continues to successfully use spear-phishing attacks against targeted organisations and individuals in the UK, and other geographical areas of interest, for information-gathering activity. The UK National Read More …

Star Blizzard increases sophistication and evasion in ongoing attacks

Microsoft Threat Intelligence continues to track and disrupt malicious activity attributed to a Russian state-sponsored actor we track as Star Blizzard (formerly SEABORGIUM, also known as COLDRIVER and Callisto Group). Star Blizzard has improved their detection evasion capabilities since 2022 Read More …

Disrupting SEABORGIUM’s ongoing phishing operations

The Microsoft Threat Intelligence Center (MSTIC) has observed and taken actions to disrupt campaigns launched by SEABORGIUM, an actor Microsoft has tracked since 2017. SEABORGIUM is a threat actor that originates from Russia, with objectives and victimology that align closely Read More …

Update on cyber activity in Eastern Europe

Google’s Threat Analysis Group (TAG) has been closely monitoring the cybersecurity activity in Eastern Europe with regard to the war in Ukraine. Since our last update, TAG has observed a continuously growing number of threat actors using the war as Read More …

Tracking cyber activity in Eastern Europe

In early March, Google’s Threat Analysis Group (TAG) published an update on the cyber activity it was tracking with regard to the war in Ukraine. Since our last update, TAG has observed a continuously growing number of threat actors using Read More …