Didier Stevens

This is a bug fix release.

zipdump_v0_0_27.zip (http)
MD5: 91A26333FB6E2FF23A37462B5031A62F
SHA256: 99E628622C5D3F3AD957C7A41264850A4FA267E46DE8F8E1AF61C684774C0850

In this new version, new features/updates are:

• Update to statistics to include longest strings (also hexadecimal and base64)
• Write option: ziphashdir and alphanumvir
• Brute-force password cracking

zipdump_v0_0_26.zip (http)
MD5: 5F6C82CD17D587D201D59A4B535F3702
SHA256: 90D0F0C1FA238DA9FBC6B7100B8EC01B0E155A0BBF22613B2BA22D5190ABF4DF

This update brings an new plugin: plugin_vba_dir.py (there are no changes to oledump).

This plugin parses the records found in the vba/dir stream to display project, references and modules information

oledump_V0_0_75.zip (http)
MD5: FB0F82B3B29883707A399B99C894EF08
SHA256: D357E48D827822D15C9C22C0B5204924FBA9FC59104818C9824AD149FE6F6249

Some changes to the translate option: now it supports this format (like some of my other tools):

i=codec[:error],o=codec[:error]

i= is input and o= is output. If you don’t specify an error handling mode, strict will be used.

An example of the format is: i=utf16,o=latin:ignore
This will read binary data in utf16 strict mode, and convert it to binary data in ANSI (latin) and ignore all utf16 characters that can not be represented in latin.

zipdump_v0_0_25.zip (http)
MD5: 141BCA65BF89E0561B42901598406113
SHA256: 54E23B4E7A3EB1B31394FCCC32F6509CFB448E0D917615C4C05E431784E70978

I added support for label * (wildcard label).

dnsresolver_V0_0_3.zip (http)
MD5: 18958CEEB8CD62B50D6533A477008649
SHA256: E8BB634C9D5562D640D23AA426948D166977193931794E67761F1BCD2436466E

This new version of 1768.py brings an option to try out all 256 xor keys if a non-standard XOR key is used to encode the configuration.

Like this sample (key !):

1768_v0_0_18.zip (http)
MD5: 323D6D20483257D76D7F9DAD07AAF630
SHA256: 653CB75FF59C27FB9A2FD651DDE2EC81A4F577F7F9050353CB0B75DF6CA95773

This update to re-search.py, my tool to search text files with regular expressions, brings several new regular expressions.

There are 4 new regular expressions for cryptographic hashes: md5, sha1, sha256, sha512. And one new name that groups these 4 regular expressions: hashes.

You can use it like this: re-search.py -n hashes sample.txt

These regular expressions not only match strings of hexadecimal characters of the appropriate length (with a boundary: \b), they also check each extracted hash with a Python function (HashValidate in re-extra.py) that is designed to eliminate strings that accidentally look like a hash (example: 32 times letter A).

HashValidate checks the following:

• that the hash is not a mix of lowercase and uppercase letters
• that there are more than 5 different hexadecimal digits
• that there are more than 10 instances of a character and the next character, that are different

These simple rules are designed to detect hexadecimal strings that are too uniform, and thus probably not a hash digest.

And I also added regular expressions for strings delimited by single quotes: str-s, str-se str-su, str-seu.

re-search_V0_0_22.zip (http)
MD5: BF72647B93D30D0D9CD75EEFED85D21E
SHA256: FCF7D6EF2A5C8AEC5FC84D2CF588FCD8DAD3923E10905D3350AAD7975D926553

A small update to plugin_msi_info to change the output format a bit. And you can select your preferred hash algorithm with environment variable DSS_DEFAULT_HASH_ALGORITHMS.

oledump_V0_0_74.zip (http)
MD5: FD4D73F0C1A6BE43406381C13C128D5E
SHA256: 1683635FD3250DF43E2CA31C60C2C81B507B1E233C5D91C2671D147C7FD8BD14

In this update, I add option -W to write items to disk.

Option -W takes a value. Possible values are: vir, hash, hashvir and idvir.

This value determines the filename for each item written to disk.

vir: filename is item name + extension vir
hash: filename is sha256 hash
hashvir: filename is sha256 hash + extension vir
idvir: filename is item id + extension vir

For an example, take a look at my SANS ISC diary entry “Extracting Multiple Streams From OLE Files“.

myjson-filter_V0_0_4.zip (http)
MD5: 7CFB64BDE6A60DB44EBEA18DD4B966D3
SHA256: B8128DC14DC7235710AB4DF9B0B2A55C43FA2035140D5CBCDC09D9079AB6D6DA

This is an update to python-per-line.py, my tool to execute a Python expression one each line of a text file.

New options are –regex –join –split. And there are new string reversal functions: Reverse and ReverseFind.

More details in the man page.

python-per-line_V0_0_10.zip (http)
MD5: 54BFA2E593A024E3FBAA76757D63847E
SHA256: D12E5FE10F71011C480EA332E0E183AE904024CEBC22128775197481152B9C1E