Malicious DLL File Dropped in the Teams or OneDrive Folder

 1title: Malicious DLL File Dropped in the Teams or OneDrive Folder
 2id: 1908fcc1-1b92-4272-8214-0fbaf2fa5163
 3status: test
 4description: |
 5    Detects creation of a malicious DLL file in the location where the OneDrive or Team applications
 6    Upon execution of the Teams or OneDrive application, the dropped malicious DLL file ("iphlpapi.dll") is sideloaded    
 7references:
 8    - https://blog.cyble.com/2022/07/27/targeted-attacks-being-carried-out-via-dll-sideloading/
 9author: frack113
10date: 2022-08-12
11tags:
12    - attack.persistence
13    - attack.privilege-escalation
14    - attack.defense-evasion
15    - attack.t1574.002
16logsource:
17    category: file_event
18    product: windows
19detection:
20    selection:
21        TargetFilename|contains|all:
22            - 'iphlpapi.dll'
23            - '\AppData\Local\Microsoft'
24    condition: selection
25falsepositives:
26    - Unknown
27level: high

References

• Cyble - Targeted Attacks Being Carried Out Via DLL SideLoading

  

  Cyble Analyzes how Threat Actors are leveraging Microsoft applications and DLL Sideloading to deliver Cobalt Strike Beacons

  
  Read More

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