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UnicodeDecodeError - Capa v1.6.0
See original GitHub issueHi!
In the last release (v1.16.0) I am getting the error message below when I run capa.exe on files with extension “.dll_”. This behavior does not occur in version v1.15.0.
- In version v1.15.0 everything happens normally:
D:\Johnk3r\Tools\capa>capa.exe c:\Temp\offreg\ee8daedce51559f8e7f27a667f114d32.dll_
loading : 100%|##########| 458/458 [00:00<00:00, 1103.61 rules/s]
matching: 6%|5 | 409/7044 [00:25<06:56, 15.92 functions/s]
- In version v1.16.0 I have the following error:
D:\Johnk3r\Tools\capa>capa_new.exe c:\Temp\offreg\ee8daedce51559f8e7f27a667f114d32.dll_
loading : 100%|████████████████████████████████████████████████████████████████████████████████████████████████████████████| 469/469 [00:00<00:00, 1240.61 rules/s]
Traceback (most recent call last):
File "main.py", line 812, in <module>
File "main.py", line 707, in main
File "main.py", line 346, in get_extractor
File "main.py", line 329, in get_extractor_py3
File "main.py", line 278, in get_workspace
File "viv_utils\__init__.py", line 80, in getWorkspace
File "vivisect\__init__.py", line 262, in loadWorkspace
File "vivisect\storage\basicfile.py", line 57, in loadWorkspace
File "vivisect\storage\basicfile.py", line 47, in vivEventsFromFile
UnicodeDecodeError: 'ascii' codec can't decode byte 0x90 in position 2: ordinal not in range(128)
[4072] Failed to execute script main
Tk.
Issue Analytics
- State:
- Created 3 years ago
- Comments:8 (3 by maintainers)
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I have created a PR in viv-utils to provide a better exception, as in viv utils we can ensure we only raise this exception when loading a
.vivfile easily: https://github.com/williballenthin/viv-utils/pull/16There is also a PR to update the CHANGELOG/release notes: https://github.com/fireeye/capa/pull/475
can you confirm that there are not any related
*.vivfiles in that directory? if so, can you delete them and try again?the underlying vivisect workspace format is not compatible across py2/py3, and we’ve missed this issue in the update to py3.