Assad fled Syria following a lightning offensive spearheaded by the Islamist Hayat Tahrir al-Sham (HTS), more than 13 years after his crackdown on democracy protests precipitated one of the deadliest wars of the century.
Darwish was detained for months by one of the most feared branches of the former government's many-tentacled intelligence services.
Syrians will not miss Assad, a brutal ruler who failed his people.
The offensive, which took just 10 days to sweep across Syria and take the capital Damascus, stunned the world and brought an end to more than a half a century of brutal rule by the Assad clan.
"We would like to see the situation in the country stabilised somehow as soon as possible," Kremlin spokesman Dmitry Peskov told reporters.
"Their human capital, their experience will allow the country to flourish," Bashir said in an interview published Wednesday.
The Kremlin said on Monday that President Vladimir Putin had made the decision to grant asylum in Russia to Assad
Mohamed al-Bashir has been appointed caretaker prime minister of the transitional Syrian government until March 1, 2025, he said in a televised statement on Tuesday
Assad fled Syria as an Islamist-led rebel alliance swept into the capital Damascus, bringing to an end on Sunday to five decades of brutal rule by his clan.
US President Barack Obama is to send 250 additional military personnel to Syria to support local militias in the fight against so-called Islamic State (IS), officials have said.
US President Barack Obama rules out US ground troops for Syria and tells the BBC military efforts alone cannot solve the country's problems.
At least 11 civilians were killed in Syria's second city Aleppo in one of the highest single tolls since a fragile truce came into force, a monitor says.
Syrian rebels seize control of the Islamic State group's main supply route to Turkey, a monitor says.
Greek authorities are gearing up to send hundreds of failed asylum-seekers back to Turkey, which is racing to set up reception centres under a controversial EU deal.
Syrian troops find a mass grave containing about 40 bodies in the city of Palmyra following its recapture from IS group.
Syrian troops backed by Russian forces recapture the famed ancient city of Palmyra from the Islamic State group in a major victory over the jihadists.
The second-in-command of so-called Islamic State (IS) has been killed in a US operation in Syria, US media report.
Russia will continue air strikes in Syria despite the withdrawal of most of its forces, a senior official has said.
EU and Turkish leaders seek to turn into a lasting accord a plan on easing Europe's migrant crisis hailed as a game-changer by Ankara and Brussels but swiftly criticised by the UN's refugee chief.
