C2_abusing_API_services.md

C2 Hiding in plain sight

also published on https://mthcht.medium.com/c2-hiding-in-plain-sight-7a83963b9344 Understanding your environment with the applications used and allowed will enhances the effectiveness of your hunt here

Telegram API usage

• C2 projects:
  • https://github.com/3ct0s/disctopia-c2
  • https://github.com/timebotdon/telegram-c2agent
  • https://github.com/SpenserCai/DRat
  • https://github.com/kensh1ro/NativeTeleBackdoor
  • https://github.com/Lemonada/teleBrat
  • https://github.com/woj-ciech/Social-media-c2
  • https://github.com/machine1337/TelegramRAT
  • https://github.com/1N73LL1G3NC3x/Nightmangle
• API detection:
  • Requests to https://api.telegram.org/bot*

Twitter API usage

• C2 projects:
  • https://github.com/slaeryan/LARRYCHATTER
  • https://github.com/PaulSec/twittor
  • https://github.com/woj-ciech/Social-media-c2
• API detection:
  • Requests to https://api.twitter.com/1*,https://api.twitter.com/2*,https://upload.twitter.com/,https://api.twitter.com/oauth*

Gmail API usage

• C2 projects:
  • https://github.com/byt3bl33d3r/gcat
  • https://github.com/machine1337/gmailc2
  • https://github.com/reveng007/SharpGmailC2
  • https://github.com/rschwass/PSGSHELL
  • https://github.com/shanefarris/GmailBackdoor
• API detection:
  • Requests to https://www.googleapis.com/gmail/*, https://www.googleapis.com/auth/*

Slack API usage

• C2 projects:
  • https://github.com/Coalfire-Research/Slackor
  • https://github.com/bkup/SlackShell
  • https://github.com/praetorian-inc/slack-c2bot
  • https://github.com/j3ssie/c2s
  • https://github.com/herwonowr/slackhell
  • https://github.com/Yihsiwei/slack-c2-golang
• API detection:
  • Requests to https://slack.com/api/*

Discord API usage

• C2 projects:
  • https://github.com/MythicC2Profiles/discord
  • https://github.com/3ct0s/disctopia-c2
  • https://github.com/emmaunel/DiscordGo
  • https://github.com/crawl3r/DaaC2
  • https://github.com/th3r4ven/Bifrost
  • https://github.com/kensh1ro/Willie-C2
  • https://github.com/codeuk/discord-rat
  • https://github.com/Vczz0/Cerberos-C2
  • https://github.com/3NailsInfoSec/DCVC2
  • https://github.com/hoaan1995/ZER0BOT
  • https://github.com/Jeff53978/Python-Trojan
• API detection:
  • Requests to https://discord.com/api/*

Google Sheet/Google Drive API usage

• C2 projects:
  • https://github.com/looCiprian/GC2-sheet
  • https://github.com/a-rey/google_RAT
  • https://github.com/SpiderLabs/DoHC2
• API detection:
  • Requests to https://sheets.googleapis.com/*,https://www.googleapis.com/drive/*

Google Calendar

• C2 projects:
  • https://github.com/MrSaighnal/GCR-Google-Calendar-RAT
• API detection:
  • Requests to https://www.googleapis.com/auth/calendar*

Github API usage

• C2 projects:
  • https://github.com/3ct0s/disctopia-c2
  • https://github.com/TheD1rkMtr/GithubC2
• API detection:
  • Requests to https://api.github.com/*

Youtube API usage

• C2 projects:
  • https://github.com/latortuga71/YoutubeAsAC2
  • https://github.com/woj-ciech/Social-media-c2
  • https://github.com/ricardojoserf/SharpCovertTube
• API detection:
  • Requests to https://www.googleapis.com/youtube/*

Pastebin API usage

• C2 projects:
  • https://github.com/3ndG4me/AgentSmith
  • https://github.com/PeterEdtu/Pastebad-Reverse-Shell (pastebin.fr)
• API detection:
  • Requests to https://pastebin.com/api/api_post.php,https://pastebin.com/api/*

Reddit API usage

• C2 projects:
  • https://github.com/kleiton0x00/RedditC2
  • https://github.com/thrasr/reddit-c2
• API detection:
  • Requests to https://www.reddit.com/api/*

Dropbox API usage

• C2 projects:
  • https://github.com/Arno0x/DBC2
• API detection:
  • Requests to https://api.dropboxapi.com/*

Instagram API usage

• C2 projects:
  • https://github.com/woj-ciech/Social-media-c2
• API detection:
  • Requests to https://api.instagram.com/oauth/*,https://graph.instagram.com/*

Zoom API usage

• C2 projects:
  • https://github.com/0xEr3bus/ShadowForgeC2
• API detection:
  • Requests to https://api.zoom.us/v2/chat/users/me/*

Virustotal API usage

• C2 projects:
  • https://github.com/RATandC2/VirusTotalC2
  • https://github.com/D1rkMtr/VirusTotalC2 (the repo does not exist anymore and the github username changed from D1rkMtr to TheD1rkMtr)
  • https://github.com/g0h4n/REC2
  • https://github.com/samuelriesz/SharpHungarian
• API detection:
  • Requests to https://www.virustotal.com/api/v3/*/comments, https://www.virustotal.com/api/v2/*/comments

Zulip API usage

• C2 projects:
  • https://github.com/n1k7l4i/goZulipC2
• API detection:
  • Requests to:
    • https://*.zulipchat.com/api/v1/messages*
    • https://*.zulipchat.com/api/v1/user_uploads*
    • https://*.zulipchat.com/api/v1/users/me/subscriptions*
    • https://*.zulipchat.com/api/v1/get_stream_id?stream=*

Notion API usage

• C2 projects:
  • https://github.com/mttaggart/OffensiveNotion
• API detection:
  • Requests to https://api.notion.com*

Matrix API usage

• C2 projects:
  • https://github.com/n1k7l4i/goMatrixC2/
• API detection:
  • POST Requests to https://matrix.org/_matrix/client/r0/rooms/*/send/m.room.message
  • GET Requests to https://matrix.org/_matrix/client/r0/rooms/*/messages

OPENAI API usage

• C2 projects:
  • https://github.com/spartan-conseil/ratchatpt
• API detection:
  • POST & GET Requests to https://api.openai.com/v1/files*
  • POST Requests to https://api.openai.com/v1/files/*
  • GET Requests to https://api.openai.com/v1/files/*/content*