USBStealer automatically exfiltrates collected files via removable media when an infected device connects to an air-gapped victim machine after initially being connected to an internet-enabled victim machine. 3
tool
USBStealer S0136
- Type
- malware
- Platform
- Windows
- Created
- 31 May 2017
- Last modified
- 10 April 2024
USBStealer is malware that has been used by APT28 since at least 2005 to extract information from air-gapped networks. It does not have the capability to communicate over the Internet and has been used in conjunction with ADVSTORESHELL. [1] [2]
14
Techniques61st pct
9
TacticsTop 11%
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 S0136
Once a removable media device is inserted back into the first victim, USBStealer collects data from it that was exfiltrated from a second victim.45
Most strings in USBStealer are encrypted using 3DES and XOR and reversed.6
USBStealer mimics a legitimate Russian program called USB Disk Security.7
USBStealer exfiltrates collected files via removable media from air-gapped victims.8
USBStealer has several commands to delete files associated with the malware from the victim.9
Standing S0136
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
Techniques1461st pct
61st percentile · 61% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics9Top 11%
89th percentile · 89% 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 / technique6medBottom 8%
8th percentile · 92% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique3med
Detection coverage S0136
177 distinct rules cover the 14 techniques recorded for this tool. The 180 technique-to-rule mappings resolve to 177 distinct rules, because one rule can cover several techniques. 130 Sigma · 47 Splunk.
12 covered by at least one rule2 with no coverage177 distinct rules in total
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