INTEL_REPORT
Trend Micro Research · published 5/5/2026, 12:00:00 AM · TLP amber
Summary
Ingested excerpt (first ~500 chars of normalized text).
InstallFix and Claude Code: How Fake Install Pages Lead to Real Compromise Targeting multiple industries worldwide, the InstallFix campaign uses fake Claude AI installer pages to trick users into running malware that collects system information, disables security features, achieves persistence, and connects to attacker-controlled C&C servers for additional payloads. InstallFix and Claude Code: How Fake Install Pages Lead to Real Compromise | Trend Micro (US) search clos…
https://www.trendmicro.com/en_us/research/26/e/installfix-and-claude-code.html
sha256:4db1d246ebf490640f8d16e53e846bca886caecb97d18b7422ab4f0a0b32f74a
What we pulled out
Deterministic extractor (IOC + allowlisted tokens + ATT&CK IDs present in DB).
Indicators
Linked with report → mentions → indicator. Values open the indicator workspace.
Malware families
Allowlist token matches only.
Threat actors mentioned
Allowlist mentions — not a formal attribution verdict.
ATT&CK techniques
MITRE IDs referenced in text and present in local technique table.
CONTINUE INVESTIGATION
High-signal pivots without leaving the thread you started in search.
Browse the report corpus.
Neighborhood from the first linked indicator.
| wscript.exe |
| Open → |
| domain | cscript.exe | Open → |
| domain | net.webclient | Open → |
| cve | CVE-2026-33017 | Open → |
| domain | shell.application | Open → |
| ip | 104.21.0.95 | Open → |
| ip | 185.177.239.255 | Open → |
| ip | 77.91.97.244 | Open → |
| domain | claude.msixbundle | Open → |
| domain | download-version.1-5-8.com | Open → |
| domain | sh.exe | Open → |
| domain | reg.exe | Open → |
| domain | fls.isb | Open → |
| domain | disphtmlwindow2.resizeto | Open → |
| domain | system.net.servicepointmanager | Open → |
| domain | runtime.interopservices.marshal | Open → |
| domain | io.memorystream | Open → |
| domain | text.encoding | Open → |
| domain | utf8.getbytes | Open → |
| domain | hash.substring | Open → |
| domain | nipple.oakenfjrod.ru | Open → |
| domain | oakenfjrod.ru | Open → |
| domain | claude.msixbundle.zip | Open → |
| domain | hosted-by.yeezyhost.net | Open → |
| domain | 1-5-8.com | Open → |
| domain | get-version.com | Open → |
| url | https://$nipple.oakenfjrod.ru/cloude-91267b64-989f-49b4-89b4-984e0154d4d1" | Open → |
| url | https://$nipple.oakenfjrod.ru/cloude-91267b64-989f-49b4-89b4-984e0154d4d1 | Open → |
| sha1 | 811fbf0ff6b6acabe4b545e493ec0dd0178a0302 | Open → |
| sha256 | 2f04ba77bb841111036b979fc0dab7fcbae99749718ae1dd6fd348d4495b5f74 | Open → |