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Researchers tied multiple 2017 intrusion campaigns to the Iranian threat activity tracked as Greenbug and OilRig, linking them through shared malware, infrastructure, and targeting patterns. Palo Alto Networks reported OilRig using an ISMDoor variant possibly connected to Greenbug, while ClearSky later identified a broader infrastructure set built around lookalike domains impersonating Israeli high-tech and cybersecurity firms, as well as a Saudi industrial company. ClearSky said a sample named WmiPrv.tmp submitted from Iraq used command-and-control domains including thetaraysecurityupdate[.]com and securepackupdater[.]com, and additional domains, IPs, hashes, and an SSL certificate suggested further preparation for targeting related organizations or third parties.
A separate campaign attributed to OilRig hit numerous Israeli organizations with malicious Microsoft Word documents sent from compromised Ben-Gurion University email accounts. The documents exploited CVE-2017-0199 to launch HTA payloads through mshta.exe and install a fileless Helminth Trojan variant, affecting high-tech, medical, and education entities and reaching more than 250 individuals, according to CERT-IL. The operation used command-and-control infrastructure including vpsupdate[.]tk, alenupdate[.]info, and maralen[.]tk, and maintained persistence with scheduled tasks disguised as Google update jobs while deploying customized Mimikatz-based batch scripts for reconnaissance and credential theft.
TTPs, infrastructure, and targeting history in one profile.
12 events from the most recent confirmed update back to the earliest known activity.
An ISMdoor sample named WmiPrv.tmp was submitted to VirusTotal from Iraq. The sample used thetaraysecurityupdate[.]com and securepackupdater[.]com for command and control.
Additional domains impersonating Israeli firms and one Saudi company were registered, including biocatchsecurity[.]com, corticasecurity[.]com, covertixsecurity[.]com, arbescurity[.]com, and ymaaz[.]com. ClearSky assessed them as infrastructure for likely future targeting.
Greenbug registered several lookalike domains impersonating Israeli companies, including outbrainsecupdater[.]com, securelogicupdater[.]com, and wixwixwix[.]com. These domains were later assessed as likely prepared for future targeting.
Morphisec began investigating the campaign after observing the attacks against Israeli organizations and later linked the activity to the Iranian group associated with OilRig.
A politically motivated campaign targeted numerous Israeli organizations using compromised Ben-Gurion University email accounts and malicious Word documents exploiting CVE-2017-0199. CERT-IL said the activity reached more than 250 individuals across Israeli companies.
Morphisec reported that vpsupdate[.]tk, used by the Helminth malware's DnE1.Ps1 component for command and control, was first registered shortly before the Israeli campaign.
Microsoft released a security patch for CVE-2017-0199 before the later Israeli-targeting campaign. Morphisec said the attackers exploited the gap between patch release and deployment.
The domain thetaraysecurityupdate[.]com, impersonating ThetaRay, was registered and later used as command-and-control infrastructure tied to Greenbug activity.
Morphisec said the 2017 Israeli campaign's infrastructure and Helminth agent closely matched an OilRig campaign that targeted 140 financial institutions in the Middle East in 2016.
ClearSky updated its report to remove three hashes after determining they had been mistakenly included and were unrelated to the campaign.
ClearSky published a report linking Greenbug to lookalike domains mimicking Israeli high-tech and cybersecurity companies and one Saudi industrial company. The report said there was no indication the impersonated companies had actually been targeted or impacted.
Palo Alto Networks Unit 42 published research on OilRig using an ISMDoor variant and noted a possible link to the Greenbug threat group.
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An Iran-linked espionage cluster tracked as **Greenbug** and **OilRig/APT34** targeted telecommunications providers in South Asia while relying on a broader toolkit built for stealthy persistence, credential theft, and covert command-and-control. Symantec reported intrusions spanning at least April 2019 to April 2020 in which attackers used email lures and malicious `CHM` and `HTA` files for initial access, then moved through victim networks with tools including **Covenant**, **Cobalt Strike**, **Mimikatz**, **Plink**, **Bitvise**, **PowerShell**, **BITSAdmin**, and webshells. In one intrusion that lasted about six months, the operators focused on harvesting credentials, maintaining privileged access, tunneling into internal systems, and testing access to database servers inside telecom environments. Multiple reports tie that activity to established OilRig tradecraft, including Exchange-focused `.NET` webshells planted under `/owa/auth/`, scheduled-task persistence, and extensive use of **DNS tunneling** to hide C2 and exfiltration traffic. Unit 42 and IronNet described tools such as **ISMAgent**, **Helminth**, **ALMACommunicator**, **BONDUPDATER**, **QUADAGENT**, and **PoisonFrog**, which encoded tasking and stolen data into crafted DNS subdomains and used `A`, `AAAA`, or `TXT` responses to pass commands. NSFOCUS said a leaked APT34 toolkit exposed PowerShell RATs, webshells, the **Webmask** DNS/HTTP hijacking tool, and more than 12,000 weak passwords, while earlier ClearSky reporting showed Greenbug delivering **ISMAgent** through an Office exploit for `CVE-2017-0199` and `certutil.exe`-decoded payloads, underscoring a long-running pattern of low-profile access operations and intelligence collection.
Aug 15, 2026
Iran-linked threat group **OilRig** (also tracked as **APT34**, **Crambus**, and in some reporting linked with **Lyceum/Hexane**) has conducted a long-running cyberespionage campaign against government, diplomatic, technology, medical, energy, and utility targets across the Middle East and nearby regions. Researchers tied the group to spear-phishing operations that used compromised business email accounts, fake **University of Oxford** conference and job sites, trojanized VPN installers, and malicious Office documents to deliver malware including **Helminth**, **ALMA Communicator**, **Marlin**, and other custom backdoors. In one notable case, malware was digitally signed with a legitimate **AI Squared** code-signing certificate, making the payloads appear trustworthy and highlighting either certificate theft or compromise. The intrusions evolved into deeper post-compromise operations featuring credential theft, webshell deployment, lateral movement, and covert command-and-control. Reports described OilRig-linked operators using **Mimikatz**, **PsExec**, **Plink**, scheduled tasks, SSH tunnels, spoofed webmail portals, and IIS backdoors such as **RGDoor**, while newer tradecraft included **DNS tunneling**, **OneDrive API** communications, and the **PowerExchange** technique that abused a compromised Exchange mailbox for C2. A later campaign against a Middle Eastern government reportedly compromised at least 12 systems, stole files and passwords, enabled remote RDP access, and deployed malware families including **Backdoor.Tokel**, **Trojan.Dirps**, and **Infostealer.Clipog**, underscoring that OilRig remains an active and adaptable Iranian espionage threat.
Aug 15, 2026
Security researchers documented multiple Iran-linked intrusion campaigns that used spearphishing and staged malware delivery to target governments, industrial organizations, and Syrian opposition figures. Palo Alto Networks traced the **Infy** malware family to a long-running espionage operation active from 2007 through at least 2016, using malicious Word and PowerPoint files to install keyloggers, steal browser credentials, collect documents, and exfiltrate data from victims including government-related entities in Israel, the United States, and Denmark. Citizen Lab separately described **Group5**, an Iran-nexus operation that targeted Syrian opposition members with politically themed phishing emails and a watering-hole site, exploiting `CVE-2014-4114` to deliver **NanoCore**, **njRAT**, and an Android **DroidJack** implant. The campaigns combined custom tooling, commodity remote-access trojans, and operational infrastructure that pointed back to Iran. In the Group5 case, researchers tied the activity to an Iranian hosting provider, observed operator access from Iranian IP space, and found Persian-language development artifacts and crypter links, while the Infy operation was connected through shared infrastructure, malware strings, and a distinctive encoding scheme across more than 40 variants, including the more capable **Infy M** branch. Together, the reports show sustained espionage activity built on low-volume, highly targeted phishing, multi-stage malware chains, and surveillance-focused payloads aimed at credential theft, device monitoring, and data exfiltration.
Aug 15, 2026