MuddyViper has uploaded files to the C2 server. Additionally, MuddyViper has the ability to upload the specified file in chunks with sleep time between each chunk.2
tool
MuddyViper S9032
- Type
- malware
- Platform
- Windows
- Created
- 20 April 2026
- Last modified
- 23 April 2026
MuddyViper is custom backdoor written in C and C++ used by MuddyWater for command and control (C2) communications and persistence. MuddyViper is loaded by Fooder and sends frequent messages to the C2 server.[1]
18
TechniquesTop 25%
10
TacticsTop 6%
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 S9032
MuddyViper has the ability to establish persistence by creating a scheduled task named ManageOnDriveUpdater to launch itself during system startup.3
MuddyViper has displayed a fake Windows Security dialog to gather credentials.4
MuddyViper has the ability to collect running processes.5
MuddyViper has launched a reverse shell using a provided command line.6
MuddyViper has used PowerShell.exe to launch a reverse shell.7
Standing S9032
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
Techniques18Top 25%
75th percentile · 75% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics10Top 6%
94th percentile · 94% of 825 ATT&CK software entries have this many tactics spanned or fewer.
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 / technique18med41st pct
41st percentile · 59% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique5.5med
Detection coverage S9032
990 distinct rules cover the 18 techniques recorded for this tool. The 1074 technique-to-rule mappings resolve to 990 distinct rules, because one rule can cover several techniques. 700 Sigma · 290 Splunk.
16 covered by at least one rule2 with no coverage990 distinct rules in total
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