ServHelper has commands for adding a remote desktop user and sending RDP traffic to the attacker through a reverse SSH tunnel.2
tool
ServHelper S0382
- Type
- malware
- Platform
- Windows
- Created
- 29 May 2019
- Last modified
- 16 April 2025
ServHelper is a backdoor first observed in late 2018. The backdoor is written in Delphi and is typically delivered as a DLL file.[1]
15
Techniques66th pct
7
Tactics68th 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 S0382
ServHelper will attempt to enumerate the username of the victim.3
ServHelper has created a new user named supportaccount.4
ServHelper contains modules that will use schtasks to carry out malicious operations.5
ServHelper has the ability to execute a PowerShell script to get information from the infected host.6
ServHelper can execute shell commands against cmd.78
Standing S0382
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.
Tactics768th pct
68th percentile · 68% 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 / technique47medTop 9%
91st percentile · 91% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique10med
Detection coverage S0382
861 distinct rules cover the 15 techniques recorded for this tool. The 931 technique-to-rule mappings resolve to 861 distinct rules, because one rule can cover several techniques. 610 Sigma · 251 Splunk.
13 covered by at least one rule2 with no coverage861 distinct rules in total
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