MAPIget

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MAPIget is a malware family primarily used for data exfiltration from compromised systems. It targets Microsoft Outlook's Messaging Application Programming Interface (MAPI) to extract sensitive information, such as emails and contact lists. As of October 2023, MAPIget has been associated with several cyber espionage campaigns, often attributed to advanced persistent threat (APT) groups. The malware is known for its stealthy operations and ability to evade detection by leveraging legitimate protocols and services.

Overview

MAPIget is a sophisticated malware family that exploits the Messaging Application Programming Interface (MAPI) in Microsoft Outlook to exfiltrate data from infected systems. It is typically used in cyber espionage campaigns to gather sensitive information, including emails and contact lists. MAPIget is often associated with advanced persistent threat (APT) groups and is known for its stealthy operations and ability to evade detection.

History

The history of MAPIget is not extensively documented due to its stealthy nature and targeted use in cyber espionage campaigns. The malware first emerged in the cybersecurity landscape in the early 2010s, with reports of its use by APT groups targeting government and corporate entities. Over the years, MAPIget has evolved to incorporate advanced evasion techniques, making it a persistent threat to organizations worldwide.

Technical characteristics

MAPIget is designed to exploit the Messaging Application Programming Interface (MAPI) in Microsoft Outlook. MAPI is a messaging architecture and a Component Object Model (COM) based API used by Microsoft Outlook to access email, calendar, and contact data. MAPIget leverages this interface to extract sensitive information from compromised systems.

The malware typically operates by injecting malicious code into the Outlook process, allowing it to access and exfiltrate data without raising suspicion. MAPIget is known for its modular architecture, enabling it to adapt to different environments and objectives. It often includes features for data compression and encryption, ensuring that exfiltrated data remains secure during transmission.

Infection vector

MAPIget is commonly delivered through spear-phishing emails, which are targeted emails designed to trick recipients into opening malicious attachments or clicking on harmful links. These emails often appear legitimate, using social engineering techniques to gain the trust of the recipient. Once the attachment is opened or the link is clicked, the malware is downloaded and executed on the victim's system.

In some cases, MAPIget has been distributed through compromised websites or drive-by downloads, where users unknowingly download the malware by visiting a malicious or compromised website. The malware may also be spread through lateral movement within a network, once an initial system has been compromised.

Notable campaigns

MAPIget has been linked to several high-profile cyber espionage campaigns, often attributed to advanced persistent threat (APT) groups. These campaigns typically target government agencies, defense contractors, and large corporations, aiming to gather sensitive information for intelligence purposes.

One notable campaign involved the targeting of a government agency in Southeast Asia, where MAPIget was used to exfiltrate sensitive emails and contact lists. Another campaign targeted a multinational corporation in the aerospace industry, with the malware used to gather proprietary information.

Detection and mitigation

Detecting MAPIget can be challenging due to its use of legitimate protocols and services, which allows it to blend in with normal network traffic. However, organizations can implement several measures to detect and mitigate the threat posed by MAPIget.

  1. Email Filtering: Implement advanced email filtering solutions to detect and block spear-phishing emails that may deliver MAPIget.
  1. Network Monitoring: Monitor network traffic for unusual patterns or anomalies that may indicate the presence of MAPIget. This includes monitoring for unexpected data exfiltration activities.
  1. Endpoint Protection: Deploy endpoint protection solutions that can detect and block malicious activities associated with MAPIget, such as code injection into the Outlook process.
  1. User Education: Educate employees about the risks of spear-phishing and the importance of verifying the authenticity of emails and attachments.
  1. Patch Management: Regularly update and patch software to close vulnerabilities that MAPIget may exploit to gain access to systems.

By implementing these measures, organizations can reduce the risk of MAPIget infections and protect sensitive information from being exfiltrated.

MAPIget Operation Flow

History of MAPIget

See also

  • Lateral movement

Sources

Categories: Threat Actors | Malware
Last updated: October 24, 2026