Graph: Growing number of threats leveraging Microsoft API


An increasing number of threats have begun to leverage the Microsoft Graph API, usually to facilitate communications with command-and-control (C&C) infrastructure hosted on Microsoft cloud services.

The technique was most recently used in an attack against an organization in Ukraine, where a previously undocumented piece of malware used the Graph API to leverage Microsoft OneDrive for C&C purposes.

Read more…
Source: Symantec


Sign up for our Newsletter


Related:

  • Commerce Secretary Gina Raimondo’s emails hacked in Microsoft cyber breach

    July 13, 2023

    Commerce Secretary Gina Raimondo’s emails were hacked as part of the Microsoft cyber breach, according to a source familiar with the investigation. Microsoft’s Outlook systems were breached by Chinese hackers, according to the company. The breach was discovered in May. Read more… Source: ABC News  

  • Enhanced Monitoring to Detect APT Activity Targeting Outlook Online

    July 12, 2023

    In June 2023, a Federal Civilian Executive Branch (FCEB) agency identified suspicious activity in their Microsoft 365 (M365) cloud environment. The agency reported the activity to Microsoft and the Cybersecurity and Infrastructure Security Agency (CISA), and Microsoft determined that advanced persistent threat (APT) actors accessed and exfiltrated unclassified Exchange Online Outlook data. CISA and the Federal ...

  • Microsoft discloses more than 130 vulnerabilities as part of July’s Patch Tuesday, four exploited in the wild

    July 11, 2023

    Microsoft released its monthly security update Tuesday, disclosing the most vulnerabilities as part of Patch Tuesday in more than a year. The company released details of more than 130 vulnerabilities, the most in a month since April 2022, 10 of which are considered to be critical. The remaining vulnerabilities are “important.” Read more… Source: Talos  

  • Attackers Exploit Unpatched Windows Zero-Day Vulnerability

    July 11, 2023

    A zero-day vulnerability (CVE-2023-36884) affecting Microsoft Windows and Office products is being exploited by attackers in the wild. To date, the exploit has been used in highly targeted attacks against organizations in the government and defense sectors in Europe and North America. The vulnerability was disclosed yesterday (July 11) by Microsoft, which said that an attacker ...

  • Microsoft Denies Major 30 Million Customer-Breach

    July 4, 2023

    Microsoft has hit back at claims from a shadowy hacktivist outfit that it managed to breach the company and obtain account access for tens of millions of customers. Anonymous Sudan, which has been linked in the past to pro-Kremlin groups like Killnet, posted the details of its alleged raid on Telegram. Read more… Source: Infosecurity Magazine  

  • Microsoft Azure and Outlook outages were caused by DDoS attacks

    June 19, 2023

    Microsoft has confirmed that outages to its Azure and Outlook services were caused by DDoS attacks, which the company puts down to the threat actor that it tracks as Storm-1359. This follows the tech giant’s new nomenclature for threats, whereby Storm denotes a group that is in development. Otherwise known as Anonymous Sudan, it is said ...