SyamRAT (provisional)
Malware family · 9 sample(s) · 9 indicator record(s) · 1 signing certificate(s) · Active 2026-08-21 → 2026-10-05 (experimental)
About SyamRAT (provisional)
Commodity Indonesian Android RAT distributed under utility/“booster” lures
(e.g. package com.pt.sejahtera, label “pelancar hp” - Indonesian for “phone
booster”). The build ships a plaintext assets/config.json naming the operator
backend, and abuses AccessibilityService + MediaProjection for remote
control, overlay injection and live screen capture. A bundled native module
(libnuker.so / assets/nuker, an ELF) provides the screen-stream/VNC
component. Live control runs over Socket.IO to the base_url in the config.
How the C2 is recovered: config.json is cleartext, so the decoder reads
base_url directly (binary-verified). The webview_url (commonly
https://www.google.com) and logo_url (image CDNs such as catbox.moe) are
victim-facing decoys and are not recorded as C2. The operator username,
session_id and per-build uid (from assets/uid.json) are captured as
attribution. Family label is provisional - this is a builder kit, not a single
actor.
Indicators
| Indicator | Type | Sample | First seen |
|---|---|---|---|
| syamrat.otax.fun | domain | 793a2cdd28f2… | 2026-09-30 |
| syamrat.otax.fun | domain | 68caf4b087d2… | 2026-08-26 |
| syamrat.otax.fun | domain | 7492ff519fbe… | 2026-08-30 |
| syamrat.otax.fun | domain | 984ebc258c10… | 2026-08-21 |
| syamrat.otax.fun | domain | aed3573f764a… | 2026-09-14 |
| syamrat.syamcloud.com | domain | 3efa80d2a7a1… | 2026-09-29 |
| syamrat.syamcloud.com | domain | 7f9d84dde2ca… | 2026-10-03 |
| syamrat.syamcloud.com | domain | 92e625364ce3… | 2026-10-05 |
| syamrat.syamcloud.com | domain | e9bf1b6ae043… | 2026-09-26 |