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Russian hackers have found a way to bypass Gmail's multi-factor authentication (MFA) to conduct targeted attacks against academics and critics engaging with Russia discussions. According to Google Threat Intelligence Group (GTIG), the hackers are using stolen app passwords obtained through sophisticated and personalized social engineering attacks. These attacks involve posing as U.S. Department of State officials to build rapport with targets, eventually convincing them to create and share app-specific passwords.
App passwords are 16-digit codes that Google generates to allow certain apps or devices to access a Google Account, bypassing the usual second verification step of MFA. While useful for older or less secure apps that can't handle MFA, app passwords lack the extra layer of security, making them vulnerable to theft or phishing. In one instance, the attackers, tracked as UNC6293 and believed to be state-sponsored, contacted a target under the guise of a State Department representative, inviting them to a consultation in a private online conversation, further lending credibility by CCing four @state.gov accounts.
This campaign, which took place between April and early June, involved meticulously crafted phishing messages that didn't rush the target into immediate action. Instead, the hackers focused on building trust through personalized emails and invitations to private conversations, using spoofed '@state.gov' addresses in the CC field to build credibility. Keir Giles, a prominent British researcher on Russia, was one such target. Google's researchers uncovered the slow-paced nature attackers used to build rapports with their victims, often sending them personalized emails and inviting them to private conversations or meetings.
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References :
App passwords are 16-digit codes that Google generates to allow certain apps or devices to access a Google Account, bypassing the usual second verification step of MFA. While useful for older or less secure apps that can't handle MFA, app passwords lack the extra layer of security, making them vulnerable to theft or phishing. In one instance, the attackers, tracked as UNC6293 and believed to be state-sponsored, contacted a target under the guise of a State Department representative, inviting them to a consultation in a private online conversation, further lending credibility by CCing four @state.gov accounts.
This campaign, which took place between April and early June, involved meticulously crafted phishing messages that didn't rush the target into immediate action. Instead, the hackers focused on building trust through personalized emails and invitations to private conversations, using spoofed '@state.gov' addresses in the CC field to build credibility. Keir Giles, a prominent British researcher on Russia, was one such target. Google's researchers uncovered the slow-paced nature attackers used to build rapports with their victims, often sending them personalized emails and inviting them to private conversations or meetings.
ImgSrc: img.helpnetsecu
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References :
- BleepingComputer: Russian hackers bypass Gmail MFA using stolen app passwords
- Malwarebytes: Gmail’s multi-factor authentication bypassed by hackers to pull off targeted attacks
- Help Net Security: Microsoft will start removing legacy drivers from Windows Update to improve driver quality for Windows users but, most importantly, to increase security, the company has announced.
- www.techradar.com: Academics and critics engaging with Russia discussions are being targeted in email phishing campaign.
Classification:
- HashTags: #GmailMFA #SocialEngineering #WindowsUpdate
- Company: Microsoft
- Target: Gmail Users
- Product: Gmail
- Feature: Bypassing Multi Factor Authent
- Type: Hack
- Severity: HighRisk