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WebAssembly module
API
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Module analysis/api/v1/wasm/b3a1014cfbf8ef4c42577bfbbe0e983ca82c5a883c2436f31165db4fa2ae72e4Decompiled code/api/v1/wasm/b3a1014cfbf8ef4c42577bfbbe0e983ca82c5a883c2436f31165db4fa2ae72e4/code

b3a1014cfbf8ef4c42577bfbbe0e983ca82c5a883c2436f31165db4fa2ae72e4

Known library: .NET runtimeDense dataHashing or cipher loops
Download .wasmSearch scans with this module

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: .NET runtime.
Names it came with
File name: dotnet-native. Its build and the addresses it came from say so; whoever builds a module chooses these, so they are hints.
How it was built
Compiled with Emscripten, usually from C or C++.
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 1 public scan, 2026-10-16.
Findings
Dense data, Hashing or cipher loops. Leads, not verdicts: legitimate modules show these too.
Size
2.8 MiB
First seen
2026-10-16
Last seen
2026-10-16
Public scans
1
Functions
8479
Imports
104
Exports
197
Data segments
3285

Analysis limits

Only its first 2,000 strings were read.

How it was built

Compiled with Emscripten, usually from C or C++.

Language
C or C++, probablyNot named. Emscripten and clang mostly compile C and C++.
Compiler
EmscriptenThe toolchain that compiles C and C++ (sometimes Rust) for the web. It comes with the JavaScript that loads the module.
System interface
WASIStandard calls for clocks, random numbers and files. In a browser the page's own JavaScript provides them.
Compiler backend
LLVMThe code generator behind rustc, clang, Emscripten and TinyGo.

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.

Hashing and cipher code

Algorithms recognised from their published constants, tables and rotation amounts: CRC-32, SHA-1. Legitimate modules use them all the time, for hashing, captchas and encryption, so this is a lead, not a verdict.

  • function 1044SHA-1 ·
  • function 1045SHA-1 · constants in its code

Decompiled code

8,477 of 8,479 functions decompiled to C-like pseudocode; 104 more are imported from the page.

  • 2 of 8,479 functions could not be decompiled.

Beyond WebAssembly 1.0: Vector (SIMD) instructions (238 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 (1 custom).

SectionOffsetSizeItems
type0x81.2 KiB150
import0x4c03.0 KiB104
function0x10c58.3 KiB8,479
table0x31ff7 bytes1
memory0x32069 bytes1
global0x320f26 bytes4
export0x32294.8 KiB197
element0x45668.5 KiB1
code0x676f2.0 MiB8,479
data0x20a562762.1 KiB3,285
custom: target_features0x2c8dc075 bytes
Memory
256 pages (16.0 MiB), up to 32,768 pages (2.0 GiB)
Table
4,371 entries, no upper limit, funcref
Globals
4
Element segments
1
Function names
none (names were stripped)
Target features
+mutable-globals +simd128 +sign-ext +exception-handling

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. 3,285 segments, 739.1 KiB in all. The chart shows 65: the first 64 and every encrypted or compressed one.

3,220 segments not drawn (587.0 KiB)02468Segment 0: 142,116 bytes, 5.44 bits per byteSegment 1: 674 bytes, 1.94 bits per byteSegment 2: 37 bytes, 0.75 bits per byteSegment 3: 105 bytes, 1.08 bits per byteSegment 4: 41 bytes, 0.84 bits per byteSegment 5: 33 bytes, 0.85 bits per byteSegment 6: 161 bytes, 1.16 bits per byteSegment 8: 537 bytes, 1.01 bits per byteSegment 10: 81 bytes, 0.81 bits per byteSegment 11: 41 bytes, 1.24 bits per byteSegment 12: 769 bytes, 1.13 bits per byteSegment 13: 145 bytes, 1 bits per byteSegment 14: 17 bytes, 1.14 bits per byteSegment 15: 229 bytes, 1.04 bits per byteSegment 16: 133 bytes, 1.07 bits per byteSegment 17: 13 bytes, 0.78 bits per byteSegment 18: 125 bytes, 0.82 bits per byteSegment 19: 41 bytes, 0.84 bits per byteSegment 20: 41 bytes, 0.84 bits per byteSegment 21: 105 bytes, 0.82 bits per byteSegment 22: 9 bytes, 0.92 bits per byteSegment 23: 101 bytes, 0.81 bits per byteSegment 25: 65 bytes, 0.81 bits per byteSegment 26: 669 bytes, 0.81 bits per byteSegment 27: 125 bytes, 0.82 bits per byteSegment 28: 17 bytes, 0.87 bits per byteSegment 29: 13 bytes, 0.89 bits per byteSegment 30: 221 bytes, 0.82 bits per byteSegment 31: 101 bytes, 0.82 bits per byteSegment 32: 21 bytes, 0.86 bits per byteSegment 34: 5 bytes, 0.97 bits per byteSegment 37: 233 bytes, 1.17 bits per byteSegment 38: 17 bytes, 1.56 bits per byteSegment 39: 45 bytes, 1.1 bits per byteSegment 40: 49 bytes, 1.25 bits per byteSegment 41: 681 bytes, 1.4 bits per byteSegment 42: 5 bytes, 1.37 bits per byteSegment 43: 13 bytes, 1.2 bits per byteSegment 44: 17 bytes, 0.79 bits per byteSegment 45: 53 bytes, 0.99 bits per byteSegment 47: 41 bytes, 1.13 bits per byteSegment 48: 5 bytes, 1.37 bits per byteSegment 49: 37 bytes, 0.98 bits per byteSegment 50: 13 bytes, 1.14 bits per byteSegment 51: 17 bytes, 1.09 bits per byteSegment 52: 9 bytes, 1.22 bits per byteSegment 53: 1,228 bytes, 4.98 bits per byteSegment 54: 72 bytes, 1.69 bits per byteSegment 56: 69 bytes, 1.38 bits per byteSegment 57: 9 bytes, 0.99 bits per byteSegment 58: 135 bytes, 4.28 bits per byteSegment 59: 281 bytes, 1.65 bits per byteSegment 60: 5 bytes, 0.97 bits per byteSegment 62: 114 bytes, 2.72 bits per byteSegment 63: 323 bytes, 4.57 bits per byteSegment 73: 5,507 bytes, 7.85 bits per byte
data segment encrypted or compressed 3,220 segments not drawn 7.5 bits per byteHeight: bits per byte. Width: share of all the data.
  • Segment 73: 5,507 bytes at 7.85 bits per byte

Imports (104)

  • env.mono_wasm_release_cs_owned_object
  • env.mono_wasm_bind_js_function
  • env.mono_wasm_invoke_bound_function
  • env.mono_wasm_invoke_import
  • env.mono_wasm_bind_cs_function
  • env.mono_wasm_marshal_promise
  • env.mono_wasm_invoke_js_with_args_ref
  • env.mono_wasm_get_object_property_ref
  • env.mono_wasm_set_object_property_ref
  • env.mono_wasm_get_by_index_ref
  • env.mono_wasm_set_by_index_ref
  • env.mono_wasm_get_global_object_ref
  • env.mono_wasm_typed_array_to_array_ref
  • env.mono_wasm_create_cs_owned_object_ref
  • env.mono_wasm_typed_array_from_ref
  • env.mono_wasm_invoke_js_blazor
  • env.mono_wasm_change_case_invariant
  • env.mono_wasm_change_case
  • env.mono_wasm_compare_string
  • env.mono_wasm_starts_with
  • env.mono_wasm_ends_with
  • env.mono_wasm_index_of
  • env.mono_wasm_get_calendar_info
  • env.mono_wasm_get_culture_info
  • env.mono_wasm_get_first_day_of_week
  • env.mono_wasm_get_first_week_of_year
  • env.mono_wasm_trace_logger
  • env.exit
  • env.mono_wasm_set_entrypoint_breakpoint
  • env.abort
  • env.mono_interp_jit_wasm_entry_trampoline
  • env.mono_interp_record_interp_entry
  • env.mono_interp_jit_wasm_jit_call_trampoline
  • env.mono_interp_flush_jitcall_queue
  • env.mono_interp_invoke_wasm_jit_call_trampoline
  • env.mono_interp_tier_prepare_jiterpreter
  • env.strftime
  • env.schedule_background_exec
  • env.mono_wasm_debugger_log
  • env.mono_wasm_asm_loaded
  • env.mono_wasm_add_dbg_command_received
  • env.mono_wasm_fire_debugger_agent_message_with_data
  • env.mono_wasm_schedule_timer
  • env.__cxa_throw
  • env.invoke_vi
  • env.__cxa_find_matching_catch_3
  • env.llvm_eh_typeid_for
  • env.__cxa_begin_catch
  • env.__cxa_end_catch
  • env.__resumeException

Exports (197)

Scripts that carry or load it

  • basopswarehouseinventory.roche.com loads it; the script is minified or bundled.
  • basopswarehouseinventory.roche.com 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

  • Produced 35 strings at run time, listed below.
  • Ran a long busy loop (often hashing).

Strings it produced at run time

Text that appeared while it ran and is not in the file: decoded, decrypted or built by its code. Web addresses are shown as their host. Showing 31 of 35.

  1. N3icu7UObjectE
  2. N3icu15ChineseCalendarE
  3. j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#j#
  4. YPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYPYP
  5. 0123456789abcdefghijklmnopqrstuvwxyz
  6. LC_CTYPE
  7. /__w/1/s/src/mono/mono/sgen/sgen-internal.c:119 <disabled>
  8. /__w/1/s/src/mono/mono/sgen/sgen-internal.c:119
  9. /__w/1/s/src/mono/mono/sgen/sgen-internal.c:119 <disabled>/__w/1/s/src/mono/mono/sgen/sgen-internal.c:119 <disabled>
  10. (null)/(null)
  11. /__w/1/s/src0
  12. gen/sgen-internal.c:119
  13. /runtimeconfig.bin
  14. -internal.c:119
  15. /__w/1/s/src/mono/mono/sgen/sgen-internal.c:119 <disabled>/__w/1/s/src/mono/mono/sgen/sgen-internal.c:119 <disabled>/__w
  16. /__w/1/s/src/mono/mono/eglib/gstr.c:340 <disable
  17. X$:uXqXf
  18. ' not met
  19. n at /__w/1/s/src/mono/mono/metadata/c
  20. n at /__w/1/s/src/mono/mono/metadata/l
  21. d?["6f<S6
  22. 1/s/src/mono/mono/metadata/l
  23. <disabled>' not met
  24. 1/s/src/mono/mono/metadata/a
  25. /__w/1/s/src/mono/mono/metadata/metadata.c:5364
  26. IAk\lF.K8
  27. e{g^{fj@
  28. l>)?|Qi^*
  29. n at /__w/1/s/src/
  30. /mono/metadata/c
  31. XM[RE#(Z

Checks we ran

  • Threat-feed matches: none
  • Names of mining software or pools: none
  • CryptoNight mining structure: not found
  • Hashing or cipher loops: 1 function (common in codecs and captchas)
  • Known hashing or cipher algorithms: CRC-32, SHA-1
  • Encrypted or compressed data: 1 block, 5.4 KiB (0.7% of its data)
  • 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.

Shares code with

Other modules that contain some of the same functions. They are ranked by functions few modules have, so a language's own runtime does not link every module built with it. Shared code often means a shared library or the same developer. It is a lead, not a verdict.

  • 26ad7a0c…a549eb2.9 MiB · first seen 2026-10-03 · 2,037 functions in common (51% of this module's, 50% of that one's)
  • 253c5777…b0363d2.9 MiB · first seen 2026-10-08 · 2,036 functions in common (51% of this module's, 50% of that one's)
  • fff19979…9f7df92.9 MiB · first seen 2026-10-18 · 2,036 functions in common (51% of this module's, 50% of that one's)
  • 9bf44add…0548cf2.8 MiB · first seen 2026-10-09 · 754 functions in common (19% of this module's, 16% of that one's)
  • 229d1091…3c424c2.4 MiB · first seen 2026-10-05 · 381 functions in common (10% of this module's, 10% of that one's)
  • da25c5dc…22ea0b2.4 MiB · first seen 2026-10-23 · 380 functions in common (10% of this module's, 10% of that one's)
  • d595e585…841b522.2 MiB · first seen 2026-10-11 · 344 functions in common (9% of this module's, 10% of that one's)
  • c5e7fd13…5141841.4 MiB · first seen 2026-10-17 · 330 functions in common (8% of this module's, 15% of that one's)
  • fd885c2d…8d77d9455.7 KiB · first seen 2026-10-20 · 16 functions in common (under 1% of this module's, 10% of that one's)

Seen on 1 public scan

PageTitleSeenHow it got there
basopswarehouseinventory.roche.comHome2026-10-16Built by a script at run time; Downloaded as a file