XLoader is an infostealer malware in use since at least 2016. Previously known and sometimes still referred to as Formbook, XLoader is a Malware as a Service (MaaS) known for stealing data from web browsers, email clients and File Transfer Protocol (FTP) applications.[1][2][3][4][5]
28
TechniquesTop 9%
12
TacticsTop 1%
0
Threat groupsNone recorded
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
XLoader uses process hollowing by injecting itself into the explorer.exe process and other files ithin the Windows SysWOW64 directory.121314
Privilege Escalation · Stealth6 detection rules
Standing S1207
Reach is how much of ATT&CK this malware 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
Techniques28Top 9%
91st percentile · 91% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics12Top 1%
100th percentile · None of the 825 ATT&CK software entries has more tactics spanned — the highest in the population.
Threat groups061% 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 / technique12.5medBottom 23%
23rd percentile · 77% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique5med42nd pct
42nd percentile · 58% of 825 ATT&CK software entries have more atomic tests per technique.
Data comps / technique4med54% tie · 11 values
54% of the population shares a single value across only 11 distinct values, so a percentile here would rank the tie, not the entity.
Mitigations / technique1med57th pct
57th percentile · 57% of 825 ATT&CK software entries have this many mitigations per technique or fewer.
5 of 8 axes carry an honest rank on this page. Coverage medians are taken across this malware’s 28 Enterprise techniques.
Range
Technique Campaign use over its cumulative rule count.
The following analytic identifies an AWS IAM account with concurrent sessions originating from more than one unique IP address within a 5-minute span. (...)
The following analytic identifies an AWS IAM account with concurrent sessions originating from more than one unique IP address within a 5-minute window. (...)
Detects successful deletion or disabling of an AWS GuardDuty detector, possibly by an attacker trying to avoid detection of its malicious activities. (...)
The following analytic detects an Azure AD account with concurrent sessions originating from multiple unique IP addresses within a 5-minute window. (...)
The following analytic detects the use of CertUtil.exe with the 'decode' argument, which may indicate an attempt to decode a previously encoded file, potentially containing malicious payloads. (...)
Adversaries may communicate using application layer protocols associated with web traffic to avoid detection/network filtering by blending in with existing traffic. (...)
The following analytic identifies the execution of the "whoami" command with the "/group" flag, where the results are passed to the "find" command in order to look for a the string "12288". (...)