Daserf can use steganography to hide malicious code downloaded to the victim.3
tool
Daserf S0187
- Type
- malware
- Platform
- Windows
- Created
- 16 January 2018
- Last modified
- 25 April 2025
Daserf is a backdoor that has been used to spy on and steal from Japanese, South Korean, Russian, Singaporean, and Chinese victims. Researchers have identified versions written in both Visual C and Delphi. [1] [2]
16
Techniques70th pct
6
Tactics53rd 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 S0187
Daserf leverages Mimikatz and Windows Credential Editor to steal credentials.4
Daserf uses encrypted Windows APIs and also encrypts data using the alternative base64+RC4 or the Caesar cipher.5
Analysis of Daserf has shown that it regularly undergoes technical improvements to evade anti-virus detection.7
Daserf uses file and folder names related to legitimate programs in order to blend in, such as HP, Intel, Adobe, and perflogs.8
Standing S0187
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
Techniques1670th pct
70th percentile · 70% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics653rd pct
53rd percentile · 53% 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 / technique11medBottom 18%
18th percentile · 82% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique3.5med
Detection coverage S0187
520 distinct rules cover the 16 techniques recorded for this tool. The 541 technique-to-rule mappings resolve to 520 distinct rules, because one rule can cover several techniques. 411 Sigma · 109 Splunk.
14 covered by at least one rule2 with no coverage520 distinct rules in total
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