e4f3c00246a775193661f9277ca1288cd310a6514de166ecc2176ccd26fb06a9

The file is the module exactly as the page had it. WebAssembly does nothing on its own: it runs only when a script instantiates it. Labels describe what the module contains and are leads, not verdicts.

At a glance

What it is
Known library: Cap proof-of-work captcha.
Names it came with
Came with the npm package @cap.js/wasm 0.0.7 (18 sites) · Came with the npm package @cap.js/wasm 0.0.8 (3 sites) · From cdn.jsdelivr.net (21 sites) · From captcha.service.elfsight.com · File name: cap-wasm (26 sites) · File name: cp-wasm. Its build and the addresses it came from say so; whoever builds a module chooses these, so they are hints.
How it was built
Written in Rust. wasm-bindgen connects it to the page's JavaScript.
What it can do
None of its imports reaches the network, runs code or changes the page. Judged from the names of its imports.
Where we saw it
On 28 public scans, 2026-10-03 to 2026-10-27.
Findings
Nothing flagged by the checks below.
Size
22.1 KiB
First seen
2026-10-03
Last seen
2026-10-27
Public scans
28
Functions
20
Imports
1
Exports
6
Data segments
2

How it was built

Written in Rust. wasm-bindgen connects it to the page's JavaScript.

Language
RustImplied: wasm-bindgen is only used with Rust.
Connects to JavaScript
wasm-bindgenRust's bridge to JavaScript. It writes glue code on both sides, so the module can call page functions such as fetch or the DOM, and the page can call the module.

Read from text inside the module (its build metadata and paths the compiler left) and from its import and export names. Whoever builds a module can change or remove these, so treat them as hints. They say how a module was made, not what it does.

What it is made of

1 Rust crate from crates.io, with the versions it was built with:

Read from text the build left in the module: source paths, build metadata and .NET metadata. Whoever builds a module can change or remove it, so treat it as a hint.

Hashing and cipher code

Algorithms recognised from their published constants, tables and rotation amounts: SHA-256. Legitimate modules use them all the time, for hashing, captchas and encryption, so this is a lead, not a verdict.

  • solve_powSHA-256 · constants in its code, its rotation amounts

Decompiled code

20 of 20 functions decompiled to C-like pseudocode; 1 more is imported from the page.

Beyond WebAssembly 1.0: Vector (SIMD) instructions (2 functions).

Decompiled code is a reconstruction from the file, so names and types are often guesses. Query values in URLs are masked here; the downloaded file is unchanged.

FunctionSizeBlocksComplexityNotes
No functions match.

File layout

WebAssembly binary format version 1, core module, 11 sections.

SectionOffsetSizeItems
type0x855 bytes9
import0x3f41 bytes1
function0x6823 bytes20
table0x7f11 bytes2
memory0x8a5 bytes1
global0x8f11 bytes1
export0x9a106 bytes6
element0x10415 bytes1
datacount0x1133 bytes
code0x11620.2 KiB20
data0x52111.6 KiB2
Memory
17 pages (1.1 MiB), no upper limit
Table 0
8 entries, up to 8 entries, funcref
Table 1
128 entries, no upper limit, externref
Globals
1
Element segments
1
Declared data segments
2
Function names
none (names were stripped)

Data segments

Each bar is one segment of the module's data: as wide as its size, as tall as its entropy. Bars above the dashed line are encrypted or compressed. 2 segments, 1.5 KiB in all.

02468Segment 0: 1,577 bytes, 5.92 bits per byte
data segment encrypted or compressed 7.5 bits per byteHeight: bits per byte. Width: share of all the data.

Imports (1)

Imports from wbg are wasm-bindgen glue. Each __wbg_… import calls one JavaScript function in the page, and its name says which (__wbg_fetch_… calls fetch). The __wbindgen_… imports are wasm-bindgen's own helpers for strings, errors and memory.

  • wbg.__wbindgen_init_externref_table

Exports (6)

Scripts that carry or load it

  • 17-app-argus.pages.dev loads it; the script is minified or bundled.
  • q3-bananagun.cfd loads it; the script is minified or bundled.
  • 226-stonkbroker-clutchmarkets.pages.dev loads it; the script is minified or bundled.
  • 1-arguseco.pages.dev loads it; the script is minified or bundled.
  • 15-cantonnetwork.pages.dev loads it; the script is minified or bundled.
  • captcha.bitninja.io loads it; the script is minified or bundled.
  • universe-static.elfsightcdn.com loads it; the script is minified or bundled.
  • proposal-lighter.info loads it; the script is minified or bundled.
  • www.studmed.ru loads it; the script is minified or bundled.
  • proposal-fables.finance loads it; the script is minified or bundled.

From public scans. A script loads a module when it fetches or compiles it.

In our sandbox

  • Nothing notable.

Checks we ran

  • Threat-feed matches: none
  • Names of mining software or pools: none
  • CryptoNight mining structure: not found
  • Hashing or cipher loops: none
  • Known hashing or cipher algorithms: SHA-256
  • Encrypted or compressed data: none
  • JavaScript stored inside: none
  • Other modules inside: none
  • Imports that read browser or page details: none
  • Function names: removed (usual in release builds)

Static checks of the file: nothing in it was run for these. A finding is a lead, not a verdict.

Seen on 28 public scans

PageTitleSeenHow it got there
q3-bananagun.cfdBest Crypto Trading Platform | Telegram & WebApp2026-10-27Built by a script at run time; Downloaded as a file
226-stonkbroker-clutchmarkets.pages.devStonkBrokers2026-10-25Downloaded as a file
proposal-lighter.infoLighter2026-10-25Built by a script at run time; Downloaded as a file
proposal-fables.financeFables Governance — Vote on protocol proposals2026-10-25Built by a script at run time; Downloaded as a file
portal-orbio.digitalOrbio · AI credits at a discount2026-10-24Downloaded as a file
co-op.seShopify-byrå & e-handelsbyrå i Sverige | CO-OP Agency2026-10-21Built by a script at run time; Downloaded as a file
1-proposal-saturncredit.pages.devSaturn: Digital Dollars on Digital Credit2026-10-20Built by a script at run time; Downloaded as a file
17-app-argus.pages.devArgus | Governance2026-10-18Downloaded as a file
3-zano.pages.devZano: Everything Private. By Default.2026-10-17Built by a script at run time; Downloaded as a file
www.scentcompany.itScent Company: fragranze che disegnano l'Identità del tuo brand2026-10-17Downloaded as a file
3-zano.pages.devZano: Everything Private. By Default.2026-10-17Built by a script at run time; Downloaded as a file
1-arguseco.pages.devArgus | Governance2026-10-17Downloaded as a file
15-cantonnetwork.pages.devThe Canton Network2026-10-15Downloaded as a file
godville.netГодвилль — божественная комедия2026-10-15Downloaded as a file
15-cantonnetwork.pages.devThe Canton Network2026-10-14Built by a script at run time; Downloaded as a file
arguspad.pages.devArgus | Governance2026-10-14Downloaded as a file
bankofamericalivesupport.com—2026-10-13Built by a script at run time; Downloaded as a file
www.ecolis.ru"Эколис"2026-10-13Downloaded as a file
chicagoplaygrounds.comLittle Village · Chicago Playgrounds · Chicago Playgrounds2026-10-13Downloaded as a file
www.studmed.ruПроверка доступа2026-10-12Downloaded as a file
15-derives.pages.devDerive.xyz | Trade Onchain Crypto Options & Perps2026-10-12Downloaded as a file
ramses-exchange.pages.devRamses X2026-10-10Built by a script at run time; Downloaded as a file
cv01.studmed.ruПроверка доступа2026-10-10Built by a script at run time
ecoauktion.seVälkommen2026-10-09Built by a script at run time; Downloaded as a file
21-saturncredit.pages.devSaturn: Digital Dollars on Digital Credit2026-10-08Built by a script at run time; Downloaded as a file