Bitter: PapRAT cyber espionage campaign

South and Southeast Asian organizations

Bitter used three infection chains against South and Southeast Asian targets, leveraging legitimate Windows functionality.

Do this now

Read the report and check whether South and Southeast Asian organizations affects you.

First seen: 2 Nov 2026
Last update: 2 Nov 2026, 14:17 UTC
Source: news

Check this repository for exposure to one security incident from pwned.coffee. Report first, change nothing until I say so.

## Bitter: PapRAT cyber espionage campaign
Severity: unknown. Patch status: fix status unknown.
Affected: South and Southeast Asian organizations

Bitter used three infection chains against South and Southeast Asian targets, leveraging legitimate Windows functionality.

## Steps
1. Search the repo, its CI and infra config for South and Southeast Asian organizations. If present, report the version in use and whether it's affected.
2. No source names a fix yet; check the vendor advisory. Until one ships: restrict network access to it.

## Report
A table: file, product or package, version in use, affected yes/no, exact fix. Then anything a human has to check outside the repo.

If you have the pwned.coffee MCP server (https://pwned.coffee/mcp), call lookup_cve for the latest, and check_repo with this repo's lockfiles, Dockerfiles and workflows for a full receipt.
Sources: https://www.infosecurity-magazine.com/news/paprat-bitter-cyberespionage/ https://www.fortinet.com/blog/threat-research/bitter-expands-its-arsenal-with-paprat
https://pwned.coffee/i/bitter-paprat-cyber-espionage-campaign

Receipt

Exploitation: No known exploitation
Score: No CVSS published yet: severity unknown.
Last checked: 6 Nov 2026, 12:18 UTC

Sources: KEV – CVE record – Vendor –

Sources

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