Unpacker takes too much time to unpack a binary
- Dominant language
- C++
- Stars
- 8.6k
- Forks
- 1k
- PR merge metrics
- No merged PRs in 30d
Description
In the following cases, our unpacker takes considerably more time than UPX (only hashes, samples are not on VirusTotal):
```
138E221A504C21880098D8E8108F35A5182C886696DA191DF3401392753D7469
57704D095A1731D2047F6510D2E79B1642C5B139C7C6CE892F102FDC72603C42
56FD34EFB05E59A7DEF3D5BCF0EBA6333040C089424BFCA469DBA1EDADA82E62
```
Find out why is this happening and what can be done about it. Screenshot from callgrind for sample `138E221A...`:
Contributor guide
No contributing guide indexed for this repository
Research direction
Start by reproducing the slowdown on sample 138E221A… and inspect the linked callgrind screenshot to see where time is spent. Compare unpacking performance with UPX for the three listed hashes; done means identifying the cause and determining what can be done about it.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- performance
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100