Hayabusa high test sigma
Suspicious Download From File-Sharing Website Via Bitsadmin
Detects usage of bitsadmin downloading a file from a suspicious domain
Detection Logic
{
"process_creation": {
"EventID": 4688,
"Channel": "Security"
},
"selection_img": [
{
"NewProcessName
| endswith": "\\bitsadmin.exe"
},
{
"OriginalFileName": "bitsadmin.exe"
}
],
"selection_flags": {
"CommandLine
| contains": [
" /transfer ",
" /create ",
" /addfile "
]
},
"selection_domain": {
"CommandLine
| contains": [
".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.nz",
"onrender.com",
"pages.dev",
"paste.ee",
"pastebin.com",
"pastebin.pl",
"pastetext.net",
"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": "process_creation and (all of selection_*)"
} False Positives
- ⚠ Some legitimate apps use this, but limited.
Field Validations
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