PLEAD samples were found to be highly obfuscated with junk code.56
tool
PLEAD S0435
- Type
- malware
- Platform
- Windows
- Created
- 6 May 2020
- Last modified
- 25 April 2025
PLEAD is a remote access tool (RAT) and downloader used by BlackTech in targeted attacks in East Asia including Taiwan, Japan, and Hong Kong.[1][2] PLEAD has also been referred to as TSCookie, though more recent reporting indicates likely separation between the two. PLEAD was observed in use as early as March 2017.[3][2]
15
Techniques66th pct
5
Tactics41st pct
1
Threat groupunranked
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0435
PLEAD has the ability to list open windows on the compromised host.77
PLEAD has the ability to list processes on the compromised host.9
PLEAD has the ability to execute shell commands on the compromised host.10
PLEAD has the ability to delete files on the compromised host.11
PLEAD has used HTTP for communications with command and control (C2) servers.1213
Standing S0435
Reach is how much of ATT&CK this tool touches. Coverage is how well defended each thing it does is, as a median per technique rather than a total — a total would just restate the reach. Each figure is ranked against all 825 ATT&CK software entries only where that population actually spreads. Where most of the population shares one value, a percentile would rank the tie instead of the entity, so the raw value is shown and no rank is claimed.
Reach
Techniques1566th pct
66th percentile · 66% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics541st pct
41st percentile · 59% of 825 ATT&CK software entries have more tactics spanned.
Threat group161% tie · 22 values
61% of the population shares a single value across only 22 distinct values, so a percentile here would rank the tie, not the entity.
Campaigns085% tie · 8 values
85% of the population shares a single value across only 8 distinct values, so a percentile here would rank the tie, not the entity.
Coverage
Rules / technique14med29th pct
29th percentile · 71% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique6med
Detection coverage S0435
441 distinct rules cover the 15 techniques recorded for this tool. The 459 technique-to-rule mappings resolve to 441 distinct rules, because one rule can cover several techniques. 308 Sigma · 133 Splunk.
13 covered by at least one rule2 with no coverage441 distinct rules in total
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