Infostealer
XLoader
Infostealer
Needs review
4 detections found
This entry hasn't been reviewed yet. It was auto-detected from the MITRE ATT&CK catalog
because it self-identifies as infostealer-type malware, but no one
has curated a full summary or double-checked its reference links. Treat the details below as a starting point,
not a verified profile.
Also known as: Formbook, XLoader
Auto-detected from the MITRE ATT&CK catalog on 2026-09-28 (S1207) - this entry has not been reviewed or curated yet. See the MITRE ATT&CK link below for what's currently known; a proper summary and authoritative eradication references are pending.
Detection & eradication references
Curated links to authoritative sources — MITRE ATT&CK, CISA advisories, law-enforcement takedown announcements, and vendor threat-intel writeups — for removal, remediation, and further technical detail. Sigma Watch does not publish its own removal steps here, since malware behavior and tooling change too fast for a static write-up to stay reliably accurate.
- XLoader, Software S1207 — MITRE ATT&CK
Detection rules
| Source | Rule | Status | Updated |
|---|---|---|---|
| suricata | ET MALWARE Formbook 0.3 Checkin | rev 8 | 2024-04-13 |
| sigma | Formbook Process Creation | test | 2022-10-06 |
| snort | ET TROJAN Formbook 0.3 Checkin | rev 5 | 2018-01-19 |
| yara | Formbook | — | — |