“a given channel. this email can be abused to send phishing messages to an organization ’ s teams channels. the end result for attackers is a variety of ways to abuse teams for post - exploitation, mainly to send phishing messages. this article will explore these vulnerabilities i…”
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T1566.002Spearphishing Link
84%
“filters may apply. for more information on how to test this, check out the bhis blog here : https : / / www. blackhillsinfosec. com / spamming - microsoft - 365 - like - its - 1995 /. also, the channel shows a “ download original email ” link. once the user clicks the link, a. em…”
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T1566.002Spearphishing Link
69%
“, links, and even action buttons that when pressed trigger something ( such as going to a specific url ). microsoft has a great article on how to structure this type of json code. enumerating channels understanding your target and creating a realistic ruse plays a vital part in t…”
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T1528Steal Application Access Token
67%
“appear as though it was sent by a legitimate connector app, which could lead to less suspicion from the target users. how do we get these webhooks? we ’ ve created a module within graphrunner to enumerate configured webhooks that a compromised user has access to. if you want to t…”
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T1071.003Mail Protocols
57%
“anyone ” permission. sending channel emails with the channel email address set to anyone, we could send an email directly to that channel from any email outside of the organization. while this sounds easy, exchange online protection ( eop ) still applies to email filtering. to se…”
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T1566.002Spearphishing Link
42%
“wishing : webhook phishing in teams wishing : webhook phishing in teams quick jump : - what are microsoft connectors? - what are webhooks? - how do we get these webhooks? - so, what can we do with these webhooks? - enumerating channels - create your own webhooks - channel emails …”
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T1566.002Spearphishing Link
35%
“appear as though it was sent by a legitimate connector app, which could lead to less suspicion from the target users. how do we get these webhooks? we ’ ve created a module within graphrunner to enumerate configured webhooks that a compromised user has access to. if you want to t…”
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Summary
Quick Jump: In the constantly evolving landscape of cybersecurity, it is common to see features designed for convenience lead to negative cybersecurity consequences. Microsoft Teams, an essential tool for corporate […]
