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Tweak tokenizer strings #982

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Merged
merged 1 commit into from
Jun 4, 2025
Merged

Tweak tokenizer strings #982

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5 changes: 4 additions & 1 deletion rules/anti-behavior/blocklist/user.yara
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Original file line number Diff line number Diff line change
Expand Up @@ -48,7 +48,10 @@ rule common_username_block_list: critical {
$not_wireshark = "wireshark.org"
$gpt_tokenizer1 = "GPTTokenizer"
$gpt_tokenizer2 = "GPT-4"
$gpt_tokenizer3 = "const bpe = c0.concat();"
$gpt_tokenizer4 = "const bpe = c0.concat(c1);"
$gpt_tokenizer5 = "export default bpe;"

condition:
8 of them and none of ($not*) and (#gpt_tokenizer1 < 3 and #gpt_tokenizer2 < 65)
8 of them and none of ($not*) and none of ($gpt_tokenizer*)
}
5 changes: 4 additions & 1 deletion rules/exfil/stealer/wallet.yara
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Expand Up @@ -35,9 +35,12 @@ rule crypto_stealer_names: critical {
$not_geth_site = "https://geth.ethereum.org"
$gpt_tokenizer1 = "GPTTokenizer"
$gpt_tokenizer2 = "GPT-4"
$gpt_tokenizer3 = "const bpe = c0.concat();"
$gpt_tokenizer4 = "const bpe = c0.concat(c1);"
$gpt_tokenizer5 = "export default bpe;"

condition:
filesize < 100MB and $http and 2 of ($w*) and none of ($not*) and (#gpt_tokenizer1 < 3 and #gpt_tokenizer2 < 65)
filesize < 100MB and $http and 2 of ($w*) and none of ($not*) and none of ($gpt_tokenizer*)
}

rule crypto_extension_stealer: critical {
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