Hayabusa high test sigma
Network Connection Initiated From Process Located In Potentially Suspicious Or Uncommon Location
Detects a network connection initiated by programs or processes running from suspicious or uncommon files system locations.
Detection Logic
{
"network_connection": {
"EventID": 5156,
"Channel": "Security"
},
"selection": {
"Direction": "%%14593",
"Application
| contains": [
":\\$Recycle.bin",
":\\Perflogs\\",
":\\Temp\\",
":\\Users\\Default\\",
":\\Users\\Public\\",
":\\Windows\\Fonts\\",
":\\Windows\\IME\\",
":\\Windows\\System32\\Tasks\\",
":\\Windows\\Tasks\\",
"\\config\\systemprofile\\",
"\\Contacts\\",
"\\Favorites\\",
"\\Favourites\\",
"\\Music\\",
"\\Pictures\\",
"\\Videos\\",
"\\Windows\\addins\\"
]
},
"filter_main_domains": {
"DestinationHostname
| endswith": [
".githubusercontent.com",
"0x0.st",
"anonfiles.com",
"bashupload.com",
"cdn.discordapp.com",
"chunk.io",
"ddns.net",
"dl.dropboxusercontent.com",
"ghostbin.co",
"github.com",
"glitch.me",
"gofile.io",
"hastebin.com",
"mediafire.com",
"mega.co.nz",
"mega.nz",
"onrender.com",
"pages.dev",
"paste.ee",
"pastebin.com",
"pastebin.pl",
"pastetext.net",
"portmap.io",
"privatlab.com",
"privatlab.net",
"send.exploit.in",
"sendspace.com",
"storage.googleapis.com",
"storjshare.io",
"supabase.co",
"temp.sh",
"transfer.sh",
"trycloudflare.com",
"ufile.io",
"w3spaces.com",
"workers.dev",
"x0.at"
]
},
"condition": "network_connection and (selection and not 1 of filter_main_*)"
} False Positives
- ⚠ Unknown
Field Validations
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