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Attributed metadata history

REPORTPUBLIC METADATA

Machine Learning Attack Series: Backdooring Pickle Files

Recently I read this excellent post by Evan Sultanik about exploiting pickle files on Trail of Bits. There was also a DefCon30 talk about backdooring pickle files by ColdwaterQ. This got me curious to try out backdooring a pickle file myself. Pickle files - the surprises Surprisingly Python pickle files are compiled programs running in a VM called the Pickle Machine (PM). Opcodes control the flow, and when there are opcodes there is often fun to be had.

Reference details

Source category
research-report
First reported
Aug 29, 2022 03:10 UTC
Last reported
Aug 29, 2022 03:10 UTC
Catalog updated
Oct 13, 2026 14:55 UTC
Record ID
17cb59521d7eb526653cd1c4483a154773e9a96e69c202047ad9bd2db96c895f

Published indicators

Network indicators are visibly defanged. This page does not make them clickable or send them to another service.

No validated file hashes or network indicators are stored for this record.

Source observations

intelligence_src_c25d91fa3ad9ae9ac7

Source-provided label
Publisher RSS metadata
Evidence class
mentioned in report
Confidence
Not reported
Observed
Aug 29, 2022 03:10 UTC
Retrieved
Oct 13, 2026 14:55 UTC

This record contains metadata and attribution only. It does not host, download, unpack, render, or execute malware samples.

Feed collection status

Sources represented on this page. Publication and observation dates describe the content; successful batch dates describe local collection. A recent batch does not certify complete coverage or current provider availability.

1 sources: 0 stale, 0 needing attention, 0 paused, 0 unverified.

Review source update dates and status
  • intelligence_src_c25d91fa3ad9ae9ac7Recent successful batchLast successful batch: Last attempt:

Stale means older than twice the recorded collection interval, with a minimum of one hour; without an interval, the threshold is 24 hours. Cached content remains available while a feed is stale, paused, or unverified.