diff --git a/tools/test_modules/m26610.pm b/tools/test_modules/m26610.pm
new file mode 100644
index 000000000..bde52a1f7
--- /dev/null
+++ b/tools/test_modules/m26610.pm
@@ -0,0 +1,112 @@
+#!/usr/bin/env perl
+
+##
+## Author......: See docs/credits.txt
+## License.....: MIT
+##
+
+use strict;
+use warnings;
+
+use Crypt::PBKDF2;
+use Crypt::AuthEnc::GCM;
+use MIME::Base64 qw (decode_base64 encode_base64);
+
+sub module_constraints { [[8, 256], [64, 64], [-1, -1], [-1, -1], [-1, -1]] }
+
+sub module_generate_hash
+{
+  my $word = shift;
+  my $salt = shift;
+  my $iv   = shift // random_hex_string (32);
+  my $ct   = shift;
+
+  my $ct_min_len = 30;
+  my $ct_max_len = 64;
+
+  my $kdf = Crypt::PBKDF2->new
+  (
+    hasher     => Crypt::PBKDF2->hasher_from_algorithm ('HMACSHA2', 256),
+    iterations => 10000,
+    output_len => 32
+  );
+
+  my $salt_bin = pack ("H*", $salt);
+
+  my $key = $kdf->PBKDF2 ($salt_bin, $word);
+
+  my $iv_bin = pack ("H*", $iv);
+
+  my $pt;
+
+  if (defined $ct)
+  {
+    my $ct_bin = pack ("H*", $ct);
+
+    my $data_bin = $ct_bin;
+
+    my $aes = Crypt::AuthEnc::GCM->new ("AES", $key, $iv_bin);
+
+    $pt = $aes->decrypt_add  ($data_bin);
+
+  }
+  else
+  {
+    # generate plaintext
+
+    # TODO now the data is all ASCII 'a', would be better to have it mimic the same structure as the reference data:
+    # [{"type":"HD Key Tree","data":{"mnemonic":[112,97,121,109,101,110,116,32,117,112,115,101,116,32,109,101,116,97,108,32,99,104,97,112,116,101,114,32,114,117,110,32,97,100,109,105,116,32,109,101,97,115,117,114,101,32,114,101,109,105,110,100,32,115,117,112,112,108,121,32,104,111,112,101,32,101,110,101,109,121,32,104,101,100,103,101,104,111,103],"numberOfAccounts":1,"hdPath":"m/44'/60'/0'/0"}}]
+    # generated from tools/2hashcat_tests/metamask2hashcat-test.py
+    $pt = "a" x ($ct_min_len + int (rand ($ct_max_len - $ct_min_len)) + 1); 
+  }
+
+  my $aes = Crypt::AuthEnc::GCM->new ("AES", $key, $iv_bin);
+
+  my $ct_bin = $aes->encrypt_add ($pt);
+
+  my $hash = sprintf ('$metamask-short$%s$%s$%s', encode_base64 ($salt_bin, ""), encode_base64 ($iv_bin, ""), encode_base64 ($ct_bin, ""));
+
+  return $hash;
+}
+
+sub module_verify_hash
+{
+  my $line = shift;
+
+  my $idx = index ($line, ':');
+
+  return unless $idx >= 0;
+
+  my $hash = substr ($line, 0, $idx);
+  my $word = substr ($line, $idx + 1);
+
+  return unless substr ($hash, 0, 10) eq '$metamask-short$';
+
+  my (undef, $signature, $salt, $iv, $ct) = split '\$', $hash;
+
+  return unless defined $signature;
+  return unless defined $salt;
+  return unless defined $iv;
+  return unless defined $ct;
+
+  my $salt_bin = decode_base64 ($salt);
+  my $iv_bin   = decode_base64 ($iv);
+  my $ct_bin   = decode_base64 ($ct);
+
+  return unless length $salt_bin == 32;
+  return unless length $iv_bin   == 16;
+
+  my $ct_len = length ($ct_bin);
+  my $ct_min_len = 30;
+  my $ct_max_len = 3136;
+
+  return unless ($ct_len >= $ct_min_len && $ct_len <= $ct_max_len);
+
+  my $word_packed = pack_if_HEX_notation ($word);
+
+  my $new_hash = module_generate_hash ($word_packed, unpack ("H*", $salt_bin), unpack ("H*", $iv_bin), unpack ("H*", $ct_bin));
+
+  return ($new_hash, $word);
+}
+
+1;